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Freshwater Daily Questions & Answers (FAQs)

A note to all looking for their questions and responses here: We ask that, before submitting, you refer to Neale Monk's: Before You Write; A Checklist of Common Problems with Freshwater Aquaria, Bettas, Goldfish, and Freshwater Turtles (Terrapins), Tips on Asking Questions Ask the WWM Crew a Question, FAQs on FAQs. EDFP, TBPFWFAQs,

Dendrobatid at Moody's...
Full Size Desktop Daily Pic & Archive Link

Updated 7/19/2008 Other Specialized Daily FAQs Logs: General, Brackish 
Daily Q&A replies/input from the WWM crew: 
Benjamin Kratchmer, Sara Mavinkurve, Adam Jackson, Scott Vallembois, Darrel Barton, Neale Monks, Marco Lichtenberger, Eric Russell, Chris Perivolidis, Pufferpunk (Jeni Tyrell), Chuck Rambo, Bob Fenner, are posted here. Moved about, re-organized roughly daily
____________________________________________________________

Constipated Midas Cichlid - 07/19/08
Hi,
<Len>
My normally ravenous Midas Cichlid lost interest in food over two weeks ago. She is about 25cm (10") long, about 14cm (5.5") "tall", and a good 7-8cm (2.5-3") thick.
<Appears to be a very nice specimen>
I don't know how old she is. Her stomach and the area surrounding her anus are very swollen. She has some asymmetrical damage to some scales around her anus that appear (to me) to be injuries after the fact. Her scales are flat against her body with no pine-coning even on the few damaged ones. I managed to get a picture of her despite her wanting to attack the camera through the glass. One of the cats distracted her for a minute. Her water quality is good with zero ammonia and nitrite, but nitrate is around 30-40 ppm at this exact moment.
<Much too high... I'd be addressing means to keep this under at most 20 ppm. See WWM re: http://wetwebmedia.com/FWSubWebIndex/fwnitrates.htm
and the linked files above>
I'm just about to do a 30% water change. Maintaining proper water quality for her has been a challenge because I adopted her when her previous owners moved to another province six months ago, but I only had a 33 gallon tank for her.
<Much too small>
Needless to say she is alone in the tank. She would kill any other fish (even my 30cm (12") Pleco). She even tries to bite my cats through the glass if they get too close to her tank. It is nice to see the tables turned for a change. They are scared of her. I have to do a partial water change every four days or her tank smells up the place and nitrate rises fast. I make sure her tank is very well aerated and I keep the temperature at 80 Fahrenheit. The pH is a hair above 6.5.
I know it is very cruel to keep her in so small a tank, but I am doing the best I can until I can get a new and much larger tank when I move in a couple weeks. I treated her with an anti-bacterial and an anti-parasite since she stopped eating with no results at least regarding the constipation. Right now there is a carbon filter in the tank and I'm concentrating on good water quality.
<Good>
I've fasted her several times, and then tried peeled peas, blanched spinach, and her usual algae wafers. She would only eat the algae wafers. The three top ingredients in the wafers are Spirulina powder, dehydrated alfalfa meal, and pea powder. The wafers seemed to help, and at one point she was eating a few of her favorite Hikari pellets and defecating a little bit. The poo looked normal for her, but thinner like her anus was half the diameter it used to be. It passed through her in the usual amount of time. Since about four days ago she has been corked up totally and completely uninterested in any food. Other than eating, she seems to be mostly fine. She is still interested in redecorating her tank, chasing the cats, and carefully watching everything that happens in the house. I can't help but feel like she is trying to tell me something, but I can't figure it out. I'm worried that she has eaten a bunch of the aquarium gravel from her tank. She is always moving gravel around with her mouth, dramatically sucking water from under large rocks and she was always a big eater. I feed her (sinking) shrimp pellets now and then for variety and I have wondered how she sorts the pellets from the gravel. I will get fine sand for her new tank just in case. I'm thinking 100-125 gallons should be okay for just her or maybe a pair if I get a male later. She looks like she has quite the hump on her forehead, but according to her last owners, she laid eggs every now and then so she must be a female. I haven't seen her lay any eggs myself. Please help me figure out how to help her. Despite her anti-social attitude and desire to bite everything, she is very sweet. She swims up to the top of the tank and eats algae wafers from my hands and allows me to touch her ever so gently when I'm trying to clean her tank. Of course she gets irate when I touch her rocks or rearrange anything, so I do that part very carefully.
<I'll bet!>
On a completely different subject... when I move to my new house I'm carrying her and my other fish in two large Tupperware-like plastic bins half full of water. I was concerned about how they would fair after seven hours in my truck in the August heat with low oxygen, but I came up with a clever plan. I bought a 12 volt power inverter that plugs into my car's cigarette lighter and outputs household AC current. I am going to plug a regular aquarium air bubbler in and bubble air through tubing (and check valves) into airstones at the bottom of the bins. I can control the temperature by bubbling air conditioned or heated air through the bins. My inverter can only output 75 watts, so if anyone needed to use a heater they would need a more powerful inverter. I thought somebody else might appreciate the idea. You can also plug in LED Christmas lights and string them under your car for a cheap but really cool lighting effect.
<Thank you for this>
Thanks in advance,
Len.
<I consider that the principal "cause" of this condition is environmental... the nitrate, too small a world... Solving these/this is really the solution here. Treating the symptoms, whether this might be a case of egg-binding, or some sort of gut blockage... with Epsom Salt, is a possibility, but only by improving this fish's world will a permanent solution be made. Bob Fenner>

Ghost shrimp/jewel anemone hlth/ID  - 07/19/08
I can't seem to find an answer for my questions.#1 I bought some ghost shrimp from my LFS and I noticed they had some white dots on their body, is this normal or some sort of disease?
<Mmm, likely more the latter... not communicable though. These sorts of markings show up in specimens that have been kept in poor conditions>
#2 I have a large colony of jewel anemones
<There are a few species that go by this name... Is this a Corynactis? Which do you have?
and can't find any info on them any where can you tell me or give me a link to some information on them? Thanks for any help!
<Bob Fenner>

No luck with freshwater cycle?  -07/18/08
Hello, WWM crew, and thanks in advance for your reply.
I have a couple of questions on a brand new 10-gallon freshwater tank I'm trying to set up. I currently have a Betta in a 1-gallon setup (no heater, poor guy) who will be moving into the new tank as soon as its water settles. General Question (the General for short) lives on my desk, where the ambient temperature sometimes drops below 70 F due to an overactive air conditioner... I'm sure he'll enjoy his new home much more. Joining him will be a few small catfish (Otocinclus - the excellent LFS has fat & happy, local, captive-bred specimens) to help with algae and add some more interest to the tank, which will be helping to spruce up a very dull reception area at my workplace.
<Tank-bred Otocinclus are very rare and they aren't bred on farms. The only breeders are hobbyists, and prices tend to be high as and when these fish are sold. If your LFS really does have a supplier of such fish, that's fantastic! Wild-caught fish predominate, and are so inexpensive lots of aquarists buy them. As I've explained elsewhere on WWM, they are extremely bad fish for the non-expert fishkeeper: they need quite cool water (no more than 25 C), very strong water currents, lots of oxygen, and a constant supply of green algae (not other kinds) or a suitable substitute such as algae wafers. All in all, difficult fish to keep alive, and the VAST majority die within a few months.>
I am pretty new to this and have never tried to do a fishless cycle before - the few aquarium books I've read have absolutely nothing useful to say on the cycle process, and I didn't find what I'm looking for by searching your site or the web at large. That said, I've had a blast reading all your articles.
<All aquarium books should describe the cycling process, and I've never yet seen an aquarium book for beginners that doesn't. In any case, here it is:
http://www.wetwebmedia.com/FWSubWebIndex/fwestcycling.htm
>
The 10-gallon will eventually have rooted plants, but does not yet (I get paid today, rooted plants come soon!) and currently has a pair of Java fern. It has 1" sphagnum peat (no additives) under 1" gravel as a substrate. As our local water is very basic and very hard, the peat not only makes the plants happy but also keeps the pH in a less extreme range (7.2 rather than 8.3). There is a hanging filter with mechanical, carbon and biological media (AquaClear 20), a heater holding at 78-80 degrees, and a fluorescent grow light that came with the hood. When starting my cycle, I sprinkled in a few of the General's freeze-dried bloodworms, hoping that their decay would cause an ammonia spike. Indeed it did; ammonia went from 0 to 6 ppm in two days' time. I've also seen a NO3 spike up to 100 ppm, but no NO2! The ammonia is slowly dropping back down, the NO3 is rising, and this does not
fit the pattern I've read about over and over on your site and elsewhere. Did I go wrong somewhere? Do I need to try again? Or does it just need a big water change?
<If you have ammonia, it's because you are either: [a] overfeeding; [b] under-filtering; or [c] not allowing the filter to mature. Common mistakes people make are to keep cleaning the biological filter medium vigourously. This kills the bacteria. A gentle squeeze in a bucket of aquarium water is all you need do, ideally once every 2-6 weeks depending on how messy your fish are. Obviously you should not feed your fish at all if you can detect ammonia. Fish can easily last 1-2 weeks without food, so this isn't an issue. Just let the ammonia drop down, and once it's safe, add tiny amounts of food. A single flake is ample for a Betta.>
The second question involves snails. They must have come in with the Java ferns. I didn't have snails before - don't want them, even - and they're tiny. One has already died; I found its empty shell scooting around in the filter's current. At least two other individuals exist - one has a fuzzy tuft of algae on its shell and the other does not. They are glossy, black, and very round, and researching them told me that they should not be able to survive in the aquarium at this stage as the ammonia and nitrate are way too high. How are they surviving the wild swings in this tank?
<Some snails are adapted to ponds where the water quality can be pretty poor. These snails breathe air, and are consequently less dependent on water quality than fish. While snails will die if endlessly exposed to very poor conditions, in the short term at least things like pond snails and Melanoides are surprisingly tolerant. Snails don't do any harm, and their numbers are directly proportional to the amount of uneaten food and generally muck in the tank. Clean tanks have few snails; dirty tanks have lots. So the important thing is to appreciate what snails are -- recyclers -- and keep the tank clean so that their numbers stay small. A few snails in a tank is a good thing: they help circulate the gravel and so prevent anaerobic decay. But in large numbers they are unsightly, and certain plants will be nibbled by them. That said, I have a small planted tank with lots of snail species and it is fine. Cryptocoryne, Java fern/moss, Vallisneria are all ignored by small snails such as Physa spp. Melanoides snails never eat plants and are completely trustworthy.>
I'm pretty confused on this, though not concerned as it seems the General will probably eat them once the water has figured itself out and he's in his new home.
Thanks!
~Sylvia
<Cheers, Neale.>

Black ghost... hlth, sys., gen.   -07/18/08
Hello.
<Hello,>
I found your cool site accidentally and have learned a lot from reading on it mainly about Black Ghosts (great job keep it up). I have gotten into the hobby on an unfortunate account that my dad had gotten cancer and I was taking care of his fish 2 tanks until he passed away.
<Sorry to hear that.>
Because of getting back to a regular work schedule I was not able to get there regularly anymore to help my step mom take care of the tank, so she asked if I wanted it. I took it to my place using same water transported in buckets did partial water change and so on when I got it to my place. I guess the move was too much for them and the fish got ich and died off after several weeks. ANYWAY, after letting the take "I hope" get healthy so to speak.. as per advice of my LFS put some food in it with no fish said it would keep cycle somewhat going.
<You can indeed cycle a tank by adding a pinch of flake, though you need to also do water changes, and also keep adding portions of food every 2-3 days. As the food rots, it produces ammonia, and that kick-starts the cycle. It will still take the usual 4-6 weeks to fully cycle, and you need to be measuring the nitrite level to see when the cycle is finished. If you just add one pinch of food and leave it at that, then all that happens is that one portion of food decays, the ammonia goes up, goes down, and then nothing much happens. You MUST keep adding food so that the bacteria have a constant source of ammonia. Essentially you're keeping fish, without the fish!>
I turned up the heat to in 90's for couple weeks to hopefully kill off any ich that might of still been in there. Finally getting to the BGK they are such a great fish.
<Yes they are, but also extremely difficult to maintain. Being very sensitive to water quality, under no circumstances would you put one in a tank less than 3 months old. You want the filter to not only cycle, but also "settle down". The problem is that a new aquarium goes through a period where the filter sometimes misbehaves, and you get small nitrite or ammonia spikes. Exposing Apteronotus albifrons to this phase would be a disaster. There's also a period where the fishkeeper needs to get the hang of cleaning the filter without harming the bacteria, and also doing things like siphoning out detritus from the substrate, learning how much food to use, and performing water changes.>
He seems to go against a lot of things I was reading about them. and I guess its on a fish to fish basis.. he is almost always out even with the light on (as matter of fact I am watching him swim around tank now and the light is on, he started eating out of my hand after at first time trying one week after I got him, he eats flakes when I put them in tank for my Kribensis. and he eats frozen bloodworms that I put in tank at lights out.
<All quite normal for well-adjusted, happy animal.>
This brings me to a question. I noticed today that the bottom fin has a couple splits in it What are the usual causes of this?
<Not "usual" but may be either rough handling (netting, transport); biting (by other fish); scratching (check for sharp ornaments or gravel); or early stages of Finrot (check ammonia/nitrite ASAP). You mention Kribensis, and all Pelvicachromis spp. are territorial and quite prone to biting even substantially larger fish. I have a small female Pelvicachromis taeniatus that quite happily charges and chases pufferfish. So while basically good community fish, their feistiness is out of all proportion to their size, as is often the case with that family we call the Cichlidae.>
There doesn't seem to be any discoloration he seems to be aggressive towards my Kribensis that I just put in about 4 days ago though that has become less frequent. Kribensis doesn't seem to like to be around him and swims away when BGK swims near him, so I don't know if Kribensis got brave and did something when lights were out, but as I watch him he still constantly swims away from BGK.
<They are competing for the same resources, namely caves, and will view each other as potential rivals. It is absolutely normal for Pelvicachromis to be utterly peaceful towards midwater fish but total terrors with regard to bottom living species. Does obviously depend on the size of the tank; Apteronotus albifrons will need a big aquarium, something upwards of 220 litres/60 gallons. Anything less and you WILL be asking for trouble. They are fish of fast-flowing rivers, so also need a very strong water current to burn off all their energy. I'd be looking at canister filters providing not less than 6 times the volume of the tank in turnover per hour. Forget about using anything hang-on-the-back or air-powered!>
So was wondering if you had any thoughts on what might cause the splitting of the fin and what I should do so it doesn't get worse. Thank you MUCH... and again thanks for this great site.
<Hope this helps, Neale.>


Question about my aquarium... FW, Small, stkg.  7/18/08
Hello,
I was just wondering if I could ask you a question?
<Feel free!>
I have a 5 gallon tank and realize the size is not ideal but I will be upgrading in 6 months time to as large a tank as I can get, once I move house. Right now I have 1 female guppy who is very lively and healthy seeming and 7 neon tetras. Am I overstocked?
<Depends how you define these things. If things are working for now, I'd leave things be and not add any more fish. The problem with small tanks is that they can quickly topple over from working nicely into being a complete disaster. The bigger the tank, the slower this happens, which is why bigger tanks are recommended. For the average aquarist, a 20 gallon tank is a good starting point, or 30 gallons if you want to keep medium-sized sort of fish like cichlids rather than guppies and tetras.>
I worry about it and can't provide a bigger home for them and didn't realize when I started the tank it may be too small. I've had it for a couple of months so its cycled and I do a 25% water change every week, sometimes more frequently if I feel it needs it. It also has a hang-on filter, lighting, heater and a air pump connected to a air stone. The temp remains constant at 25 degrees c. I also have an Amazon sword plant which I think is growing well and a banana plant. PH is around 7.5.
<It all sounds nice. Small tanks aren't "bad", they're just difficult. I have an 8-gallon tank that is incredibly rewarding. It sits on a windowsill and I let the aquatic plants grow out the top. Some of them are twice as tall above the water as they underneath the water, and they're covered with flowers. In there I keep livebearer fry (Limia nigrofasciata) and some Cherry shrimps, which are breeding like crazy, and four little Aspidoras catfish that are barely an inch long. The thing is that I'm an expert fishkeeper and I know what I'm doing. For someone new to the hobby, this sort of tank would be very difficult to set up. Or more specifically, they'd be trying to add too many fish that are too big for the system, and so cause problems. This is why we recommend 20 gallon tanks for beginners: they're easy to stock with popular fish, and they're big enough that they will "forgive" accidents and oversights.>
I realize I made a mistake not buying a huge tank but I'm not living in my own house but my sisters and thus don't have room for a huge one. Anyway I can make them happy and healthy? They seem fine at the moment. One neon tetra does have a small pale patch near the tail, I at first thought it was fungus but its not growing and seems to just be a pale part of its skin. Its not like a dot so I don't think its ick and none of the other fish have it. What do you think?
<Difficult without a photo. Could be early stages of Finrot, but I suspect it might be the dreaded Neon Tetra Disease (or so-called False Neon Tetra Disease). In either case what happens is the fish loses colour by stages, becomes shy, separates off from the school, stops eating, and then dies. It's very contagious, and passed on when healthy fish peck at dead or dying fish. So if you are sure the fish is sick, isolating it is a good idea, and painlessly destroying it the best plan of all. Neons these days are plagued with this disease, and I know lots of people who buy a big school of Neons and end up with only half of them just a few months later.>
Thank you very much if you can answer.
<Hope this helps, Neale.>

An Oscar's diet...  7/18/08
Thank you so very much for the information your site provides! I have been overwhelmed with all that I have learned in the last couple of weeks. Neale has answered some questions and my transplant tank for my Oscar is coming along nicely. I wish the friend who gave me the aquarium with the Oscar would have read this site so I wouldn't have had to spend so much $$ to ensure "SharkBait" would have a happy/healthy life! (Upgrading from a 35 gallon hex with a single Emperor 280 to a 75 gallon with two Emperor 280's and an Eheim 2217)
<We're glad to help, and I'm pleased to hear about all these positive changes.>
My friend also told me that all I had to do was buy these Cichlid Pellets and feed him twice a day. Reading over your FAQs, I see that SharkBait should have meat in his diet. I live in S. Florida and we have had lots of rain lately...the frogs have been very busy and I have 100s of tiny frogs hoping about the yard...are these safe to feed to an Oscar? (I have read and searched the FAQs and I see that crustaceans (shrimp) and veggies (shelled peas) are recommended.)
<Oscars certainly will eat small amphibians in the wild. But do be careful, because some amphibians are toxic. Here in England for example, the common toad contains Bufotoxin, and I once had a cat that bit one and then spent the rest of the day frothing from the mouth like it had rabies. So you have to be careful. Personally, I wouldn't take the risk. Oscars feed primarily on fish and arthropods, especially crayfish and small crabs. The second most common part of their diet is plant matter, something aquarists don't always realise. So rather than worrying about "one" perfect food item, I always recommend people come up with as diverse a menu as possible for feeding Oscars. There is a good reason to avoid live foods though, beyond the risks of poisons/parasites, and that's the infamous Oscar Hunger Strike. Some Oscars are prone to accepting just one favourite food item. This causes major problems in the long term. So you want to be offering something different every day or two, so bad habits can't form. Do take care not to overfeed your fish too; Oscars are consummate animal psychologists that are very good at training humans to provide them with food on demand. Resist their mind games! A healthy Oscar should be lean, and with a just-filled abdomen rather than looking stuffed.>
Thank you again for all the time the crew has put into this site and answering questions like this one. The information is invaluable to we who do not know and need to learn.
<Thanks for the kind words. Oscars are lovely fish, perhaps THE most intelligent fish in the hobby, and make amazingly good pets. Time used researching your fish is time well spent. Cheers, Neale.>

A fish no one knows about  7/18/08
Hello. I'm Samie. I'm 16. I can take care a lot of different fish, but I seem to have an eye for trouble makers.
<Oh?>
I have a 10 gallon tank. It has been set up since January. My pH is 7. Ammonia, nitrite, and nitrate are all at 0. I have drift wood and 1 small plant.
<All sounds fine, but do bear in mind that 10 gallons is really too small for the fish you have chosen, and long term are likely to have problems. Because 10 and 20 gallon tanks have almost the same footprint and cost almost the same amount of money, I always recommend people go with 20 gallons when starting out.>
The fish I have are tetras (2 white skirts, 1 rosy, and 3 x-rays) Ghost Shrimp, and Balloon Body Gold Ram.
<Ah, now these fish aren't compatible. White Skirt tetras are albino Gymnocorymbus ternetzi, a notorious fin-nipper and going to get quite large, about 5 cm long. Rosy Barbs (what I assume the "rosy" is) are Puntius conchonius, a subtropical species able to get to 14 cm and so obviously way too big for your tank. The long-fin version will also be vulnerable to fin nippers. X-Ray Tetras are Pristella maxillaris, a superb species, but in my opinion slightly too big for a 10 gallon tank. All these fish are schooling species, and MUST be kept in groups of 6 or more if they are to be happy. Keeping them in the numbers you have may be convenient to you, but it is intensely stressful for the fish, and long term they may exhibit aberrant social behaviours, such as shyness, fin-nipping, or chasing.>
My problem is, no matter how many people I ask, no one seems to know how to help me.
<We'll do our best...>
My Balloon Body Gold Ram is not eating.
<Likely too cold, wrong water chemistry. Mikrogeophagus ramirezi can ONLY be maintained in very warm (28-30 degrees C), very soft (less than 10 degrees dH), very acidic (pH 5-6) water conditions. None of your other fish will tolerate this, and some, like the Rosy Barb and the Shrimp will be quickly killed by such conditions. Mikrogeophagus ramirezi is simply NOT a community fish, and the majority of specimens die within months when put into community systems. Specifically, when kept too cold and too hard water their immune system is suppressed, and they become prone to diseases such as Hexamita and Hole-in-the-Head.>
?? I have tries frozen foods. Micro Pellets. Betta pellets, Betta flakes, tropical flakes, and he/she won't eat.
<Likely sick, dying.>
He/she has a red spot on he back. So I started treating him with MelaFix. Since it's been only 1 day.
<Could be Finrot, another opportunistic infection that affects fish when they are stressed by a poor environment. So this is consistent with my analysis.>
There is no change yet.
<There won't be. Firstly Melafix may be cheap but it isn't effective so serves no useful purpose except perhaps as a preventative. Once fish get sick, you need more useful medications like eSHa 2000 (in Europe) or Maracyn (in the US).>
If know anything about this fish.
<Much information in cichlid books; look up Mikrogeophagus ramirezi. Widely kept, bred and so the basics for its care are very well known. It's a shame retailers don't tell people what they need PRIOR to purchase. Underlines our mantra here that you should always RESEARCH a species BEFORE buying it.>
Why he/she won't eat.
<Wrong environment. Doomed.>
or even if it guy or a girl.
<Difficult to sex, but males tend to have longer dorsal fin rays.>
Please help me out.
<Have certainly tried.>
Thank you.
<Cheers, Neale.>

Separating Red Eared Sliders 7/17/2008
Hello,
<Ave,>
I have been reading and scanning your site for any information pertinent to my situation. I have 3 red eared sliders, 2 females and 1 male. My male turtle is becoming aggressive towards my 2 females, and from what I have read so far it seems the wisest choice would to be to separate the male from the 2 females.
<May well be if the habitat is too small. Sometimes a bigger vivarium with at least two "islands" of land will mean the females can rest away from the female easily enough. Most problems happen when they are crammed into a too-small enclosure.>
My concern is, after doing a lot of reading, will the two females "miss" the male or will the male "miss" the females?
<They won't miss him at all. Though do be aware that females can produce (infertile) eggs away from the male, and this can lead to "egg binding" if they can't lay them, a potentially fatal situation.
http://redearslider.com/reproduction.html
Obviously this causes a great deal of pain to the reptile, so you should be aware of the symptoms and prepared to fix things should the worst happen.>
Is there such thing as turtle depression?
<If there is, it isn't something known to science.>
I got them as babies 4 and 1/2 years ago and they have never been separated since, and I don't want them to feel insecure or lonely by me separating them.
<Reptiles are generally pretty phlegmatic animals and Red-ear Sliders at least aren't social animals in the wild.>
Also, I have read that female red eared sliders are more aggressive than males.
<Not heard of this.>
Would leaving the 2 females together be a recipe for disaster?
<Nope, assuming the habitat is big enough for two dinner-plate sized animals.>
They have not had a problem with each other at all so far, only with the male. It seems that it would be ok to leave the 2 females together as long as they don't fight. Any advice and suggestions would be greatly appreciated! Thank you so much for your time!
<Hope this helps, Neale.>

Re: lowering ph in planted tank 7/17/2008
Any recommendations of buffers...SeaChem alright? seems from what I can glean, I'll have to use both acid and alkaline buffer to get the water stable. as well, any resource for finding out what trace minerals, etc., if any, will be needed to get the water ready? freshwater, planted, assorted species (rasboras, Dennison's barbs, Glo lite tetras, Plecos, Corys).
thanks
<Assuming you have softened the water already, then any commercially available freshwater buffer should work fine. Get one that steadies the pH at 7.0; this is ideal for the widest range of fish and plants. Do also remember that when pH drops below 7, biological filtration becomes steadily less effective. You only need one buffer; if used correctly it will prevent both pH rises and pH drops. There's absolutely no point to softening the water below 10 degrees dH unless you have a specific fish that needs those conditions and will tolerate no other. Ditto carbonate hardness, which should be at least 3 degrees KH for pH stability. Hence a 50/50 mix of hard tap water and RO/rainwater can work extremely well, while also being very cost effective. Remember, soft water is all very well, but if it is expensive/time consuming to produce, that may mean you do fewer/smaller water changes, which is bad! So balance the critical thing (water quality) against the nice thing (water chemistry) and find a balance that works for your time/budget situation. Assuming a moderate amount of hardness, there should be sufficient trace elements and minerals in the water for the fish, and weekly use of plant fertilisers will help on the plant front. Cheers, Neale.>

Re: lowering ph in planted tank 7/17/2008
Darn Neale, you are smart!
<Or at least a good bluffer...>
Alright, I hope this isn't a stupid question:
<The stupid question is the one that isn't asked...>
is carbonate hardness the same as alkalinity?
<Different ways about talking about the same thing. Where general hardness is merely how much calcium and magnesium salts dissolved in the water, carbonate hardness (and alkalinity) measures the carbonate/bicarbonate salts that inhibit pH changes (or in other words, create alkalinity). Hence carbonate hardness and alkalinity are related, while general hardness is something entirely different. In fact general hardness is perhaps best related to Total Dissolved Solids (or TDS).>
if so, the conversation is around 17.8 I believe, so alkalinity should be at least 55 ppm or so (if I did the math right).
<Correct, 55 mg/l CaCO3 is (roughly) 3 degrees KH, and what I'd consider the minimum level for an "easy to run" aquarium. Any less, you get rapid acidification and potentially problems with plants (because some remove carbonate and bicarbonate ions during photosynthesis).>
my tap water has alkalinity in the 120-130 range (although it does fluctuate from time to time), so if I mix 50/50 with RO or RODI, I will I get roughly 60-65 ppm alkalinity, or is there more to the equation than that.
<This is exactly so. If you go visit my web site, I have a computer program called Soft Water Ware that does the specific calculation for working out this kind of thing, called a Pearson's Square. It's free, and it's Mac/Windows.
http://homepage.mac.com/nmonks/Programs/softwaterware.html
>
stated alternatively, what happens when you mix 120 ppm alk, 8.0 ph tap water at a rate of 50/50 with RO or RODI water?
<What you'd get is very nice water for tetras, barbs, etc.!>
and "dH" you mention - is that general hardness?
<dH stands for Deutsche Haerte, or German Hardness. This is the scale used to measure "general" hardness, which comprises both temporary hardness (i.e., carbonate and bicarbonate) plus permanent hardness (things like sulphates). Without getting into too much depth, while related, general hardness and carbonate hardness are important for different things. General hardness (that's measured in degrees dH) is all about osmoregulation, i.e., how easily a fish can maintain its internal water balance. Carbonate hardness (degrees KH) is important to us because it is what prevents pH changes; the more carbonate hardness, the resistant to acidification the water will be. For historical reasons, many general hardness kits, particularly in America, translate their results into the EQUIVALENT amount of calcium carbonate required to get the same amount of hardness by itself. Hence you might get a general hardness test kit with a results card measured in mg/l or ppm calcium carbonate (CaCO3). But it is important to understand that this is a conceit that exists only to make things easier to understand (!!!). The general hardness test kit itself will not be measuring calcium carbonate but calcium and magnesium salts. That's why I prefer to use the "degrees" scale instead of ppm or mg/l when talking about both of these measurements, so people understand that they are entirely different things.>
Thank you again.
<Hope this helps, Neale.>

Zebrafish Development, lit. searches, scientific  7/17/2008
Hello,
I am currently working in a Cell biology lab that is using zebrafish as a model system. What is the minimum temperature that a zebrafish embryo can develop? I have read that adult zebrafish can tolerate a wide range of temperatures (from 64-80F). I have also read that spawning is temperature induced. Is it possible for zebrafish embryos to develop normally in temperatures as low as 64F (since reproduction is stimulated by warmer temperatures?)? If not, what is the lowest temperature that normal development can occur?
Thank you very much for you time!
<Greetings. I'm assuming from your e-mail you're an undergraduate who's been assigned a project at a research lab someplace. That's great. Now, I do vaguely know the answer to this, but I'm pretty sure that putting into your project a factoid gleaned from "some guy on the web", even one with a PhD like me, isn't what your professors are after. What they want from you is to do a literature research. Trust me on this: being a some-time university professor myself, I know precisely and exactly what I expect from my undergraduates. So, what I suggest you do is first find out the scientific name of the Zebra Danio, and then use the bioscience/biomed literature search tools (e.g., SilverPlatter) at your academic library to access the scientific literature. Warning: the scientific name of the Zebra Danio has changed at least once in the recent past, so you will need to use both names to get the full overview. The developmental biology of the Zebra Danio has been done to death, and it was something being studied decades ago. So the answer to your question is certainly out there. Confused? Ask the librarian; librarians are happy to help with focused questions like this and will know precisely what tools are available to help you. In short: Good students use the scientific literature; Weak students use Google and Wikipedia. It's as simple as that. Good luck with your project! Neale>

Regarding Freshwater Stingrays' Babies.  7/15/08
Hello,
Can you advise me as to how to take care of new born babies of PLE14?
<I assume you mean Potamotrygon species P 14; I've never heard of 'PLE14' but I admit my knowledge of these animals is hardly encyclopaedic!>
What kind of procedures should I follow?
<Same as the adults, though removing the adults, particularly the male, is recommended.>
I have almost a dozen of new born babies which came from the breeding of PLE10 and PLE14.
When they were born, the babies seems to be in good conditions, however after a couple of days they started behaving weirdly.
<Well done on getting the babies!>
Some of them start having fin curl issues, some start leaking sticky substance from their bodies.
<Ah, this is the tricky bit with all livebearers, whether Stingrays or Guppies -- getting the babies is easy, rearing them in good numbers is difficult.>
Have checked the water ph (is around pH 7), changed the water gradually to get it slightly more acidic, temperature was normal (around 27 degrees Celsius), with filters and heaters. Everything seem to be in good condition.
<I wouldn't mess with water chemistry. It doesn't matter much to Stingrays. What matters to them is water quality (ammonia, nitrite and nitrate) first and pH stability second. Changing the pH, even to a nominally optimal value, can stress them. Moreover, as with any freshwater fish, changing the pH without changing the hardness as well is pointless and likely to cause pH instability.>
The adults rays were in the same pond but they don't have any issues, however the babies seems to be having a very tough time, in fact a few of them have already passed on.
<For a start I'd concentrate on keeping water chemistry stable and water quality optimal. I'd be tempted to isolate the juveniles, and perhaps the females as well (the male Stingrays, like male Guppies, can be quite persistent re: mating, and in the process can stress, even damage, the females.>
Please advise what should I do to prevent the others from becoming the same way.
<Can you tell me a bit about the pond, i.e., capacity, pH, general/carbonate hardness? Do also review the substrate. While Stingrays definitely prefer sand on the bottom of the tank, there's some experience to suggest sand can trap dirt and/or bacteria and cause problems. While adults may be relatively resistant if the sand is kept clean, juveniles may be more sensitive. This is certainly the case with many other benthic fish, for example juvenile catfish.>
Thank you very much.
Regards,
Qianling
<Good luck, Neale.>

Re: Regarding Freshwater Stingrays' Babies. – 07/16/08
Hi Neale,
Thanks for the prompt reply! :)
<You're welcome.>
We have removed the babies from the main pond, to avoid adults having conflicts with them.
<Good. Do also try and separate the female for a while, so she can "fatten up" a bit.>
The ponds that we shifted the babies to is 4ft long 2 ft wide 2ft depth (6 in one and 5 in the other), the pond for adults is 18ft long 10ft wide 2ft depth (total 8 adults within it).
<Sounds great.>
There is no substrate at all, totally clear water. pH was around 7.2.
<All good.>
We did put in the pandan plant to minimise the ammonia, nitrite and nitrate issue.
<Hmm... is it possible some pesticide spray came in with this plant? Also remember that things like ceramic plant pots can carry various residues into the aquarium too.>
Temp is around 26.5 ~ 27 degree Celsius.
<OK.>
Adults pond have 1 big and 2 small filters. Babies ponds don't have filter at this moment.
<Ah, this isn't going to work in the long term... or even the short term. I'd have at the very least a decent canister filter working here.>
All ponds do not have heater as my country's (Singapore) climate is pretty warm unless there's storm in the night then perhaps the water temp might be slight cooler.
<Sounds fine.>
What other things should we take note of?
<Nothing obviously remiss here, except the lack of filter on the pond with the juvenile fish. I'd perhaps check the nitrite/nitrate levels first, and then also consider whether the diet offered to the juveniles is sufficiently balanced. Do also consider extrinsic factors, e.g., pesticide sprays, paint fumes, cooking fumes. Use of activated charcoal to remove any potential toxins from the water might be worthwhile if these are suspected. Consider running tests for chlorine and copper, both of which are very toxic to Stingrays, and likely more so to juveniles than adults.>
Please advise.
<There's really not much more to say. Generally if Stingrays are happy, they breed. And if water conditions are good enough for breeding, the juveniles are comparatively easy to rear. You could separate off one or two of the youngsters to an aquarium where you can control water quality/chemistry more easily.>
Thank you very much!! :)
Regards,
Qianling
<Cheers, Neale.>

Re: Regarding Freshwater Stingrays' Babies. 7/17/2008
Hi Neale,
Again Thank you!! :)
<Most welcome.>
Will inform my dad about all these issues that he has to take note of. He's still considered as a newbie in rearing stingrays though he does have a few more experience people with him however they seem totally unsure what to do about the babies.
<Very good. The thing is to experiment. Healthy fish will produce many batches of babies, so you can test out different ideas each time until you find a system that works for you.>
You have been a fascinating help!! :)
Last question that got me seriously curious about these rays..
<Yes?>
How does one feed them one by one? using hand? or those stick like thing to put the food in? Won't they be uncomfortable with the stick like thing?
<Simply placing live foods at the bottom of the aquarium should be enough to get the juveniles feeding. Bloodworms and other small invertebrates would be the ideal. Small earthworms seem to be especially favoured by Stingrays (and indeed fish generally!). Frozen foods may work too. Surprisingly perhaps, I find using forceps or other tools to hand feed fish works rather well. Fish seem to accept an inanimate object much more readily than me sticking my arm into the tank.>
Oops another... Can the babies eat what the adults are eating?
<Pretty much the same stuff, but smaller in size of course.>
Thank you very much!! :)
Regards,
Qianling
<You are welcome! Good luck, and how about some photos? Cheers, Neale.>

Colomesus asellus and Carinotetraodon irrubesco, comp.  – 07/16/08
Thanks for your help with my previous marine question! Answered so quick too!
I have another query. Would 2 c. asellus and a c. irrubesco be compatible tankmates in a 120l tank (30x15x18)? I've heard it said they can get along, but don't know what size is meant for 'getting along'. I love both types of puffer fish and wondered if this was a possibility?
Thanks again, your website has been so helpful in my research over the years!
Jo
<Jo, I can speak from personal experience here: Yes, this combination works great! I have a trio of Colomesus asellus and a male/female duo of Carinotetraodon irrubesco living in my 180-litre community tank.
http://homepage.mac.com/nmonks/Projects/pufferfish.html
For the most part they occupy completely different parts of the tank, the Colomesus asellus swimming about the open water, and the Carinotetraodon irrubesco sticking close to the ground, usually lurking under the rocks. Occasionally there are contretemps over food, the Colomesus asellus invariably using their greater speed to whip food away from the Carinotetraodon irrubesco, but that's about it. Most pufferfish make poor fish for multi-species system, but in my experience both of these species work quite well. Colomesus asellus can be a bit nippy towards slow moving fish, but my Carinotetraodon irrubesco seem completely harmless and even get bullied by the female Pelvicachromis taeniatus who cohabits with them and sometimes wants a particular cave the puffers though belonged to them! Cheers, Neale.>

Re: Freshwater puffers; Carinotetraodon irrubesco and Colomesus asellus cohabiting 7/17/2008
Again, thank you for the advice - I do have a twig catfish - that would likely be nipped and need re-homing yes?
<This is Farlowella or Sturisoma sp.? Then YES, these catfish would be completely unsuitable for a tank containing Colomesus asellus. My Colomesus certainly do nip at Corydoras for example, though catfish that hide away like Synodontis are ignored. Not sure about Carinotetraodon irrubesco; never seen them nip fins, though some specimens have been reported to attack and eat small fish. Never seen that myself though, I hasten to add. Cheers, Neale.>

Re: Freshwater puffers; Carinotetraodon irrubesco and Colomesus asellus cohabiting 7/17/2008
Thanks for the quick reply, Neale. Thought as much. Was going to have the puffers and maybe some quick moving larger tetra (x-rays).
<Mine live with Diamond Tetras, Bleeding Heart Tetras and Glassfish. Have cohabited with Cardinals, but the Colomesus did seem to take occasional nips at them.>
I have two unpaired Bolivian rams (they've never bonded) and wondered if they would be able to fend for themselves like kribs in your tank?
<Likely, yes. Have kept Mikrogeophagus ramirezi in my 180-litre set up without problems. Provided the cichlids have caves and cover, they should be fine.>
Would leave me a tank free for a peaceful setup with my twig cat (the Farlowella) and some nice sparkling gourami's/peacock gobies or such-like if the rams could go with the puffers, but if not they've done fine with twig so far.
<Sounds like a plan. Do bear in mind Farlowella are fast-water fish, and one reason they often congregate by the filter outflow is their need for not-too-warm, well oxygenated water. So think about creating a mountain stream tank for Farlowella, with lots of water-worn boulders, bogwood, and water current. Danios, minnows, etc would be ideal tankmates. Bearded Corydoras (Scleromystax barbatus) would also be great additions to such a tank.>
I know I'm going through a tank shift when I move house so trying to organise some new set-ups!
Thanks again
<Good luck, Neale.>

Re: Freshwater puffers; Carinotetraodon irrubesco and Colomesus asellus cohabiting 7/17/2008
Thank you for all the advice! Liking the sound of that set-up suggestion for Twig.
<Cool. They're nice fish, often kept badly. Cheers, Neale.>

Re: sick fire belly-newt – 07/16/08
Hey,
Thanks for all this, I'm really grateful:), but if you can i.d really like if you can recommend any of those stuff, like what type of plants, what kind of vitamins and food, and the light. I have one of those but its broken:( (my bunny got to the power cord).
Ok, please let me know, Bergur.
<Mmmm, no sense "reinventing the wheel" or other common/shared knowledge sources. Please peruse this search result: http://www.google.com/search?q=fire+belly+newt+culture&rls=com.microsoft:en-us:IE-Address&ie=UTF-8&oe=UTF-8&sourceid=ie7&rlz=1I7GGIC
Bob Fenner>

Adjusting CO2, pH, dKH, the "Shift" Key on Your Computer Keyboard - 7/16/08
Dear Crew,
<Hello again!>
First, I would like to say thank you to Benjamin. I have confirmed the bottle was indeed filled with co2;)
<Welcome, and glad to hear it. My thanks to Bob for pointing out a simple test I overlooked/was ignorant of>
I have a 250gal planted aquaria, heavily planted, with 30 cardinals, 2 Corydoras, 5swordfish, 3 algae eaters, 3botias,1 black ghost.
All fishes seems to be doing fine- the swordfish just bred.
Plant growth, however, has been slow.
I'm experiencing difficulties in achieving the correct level of water parameters (ph; kH and co2 levels) currently my tank water has ph=8.5 and kH=11
I'm using sera test kit for testing the water kH and ph.
I'm using well water that has ph=7.5 ; and kH=11. unfortunately, haven't found a gH test kits from my LFS, so I assume that the water has a high level of gH, since it shows marking on dry pipelines.
<11 dKH also indicates high TDS>
Recently I bought a CO2 unit from my LFS and it has been running for about a week. And made adjustment of about 5 bubbles per sec. and leaving it running throughout the night.
Q: How come my ph doesn't show any changes? Should I pump up the CO2 rate?
<I wouldn't>
Is it because of the high kH?
<This is buffering it, yes. Consider an acid buffer in your water changes>
I've tried using RO water (with ph=7; kH=3)changes but after a few hours the ph and kH went back to 8.5ph and 11kh.
<11 dKH in a 25o gallon tank is a lot of buffering capacity. Will take many water changes...also, do you have an sources of carbonate in your aquarium? Aragonite, limestone, etc?>
Also, it will come to a time when I will have to make water changes that I don't want to keep buying RO water.
<With your hard water, it may be necessary for you to purchase an RO unit to make your own- at a significant savings compared to purchasing the water>
What should I do to make my life easier?
<Use lower alkalinity in your water changes for a while, see if this helps. To make my life easier, please read our page on "How to Ask the WWM Crew a Question and do use punctuation, capitalization so that I don't have to type edit your email. These are all archived for posterity (and Google!) and it will speed the reply and posting- or prevent our ignoring it entirely- if you follow our guidelines.>
many thanks,
<No problem!>
Hans.
<Benjamin>

Res Shell – 07/16/08
hi can u please check the picture and tell me what is the problem with my res? thanks
<Looks normal enough to me. Do bear in mind that old scutes (the "scales" that make up the shell) flake off as the animal grows. The shell also turns from bright green/yellow to more olive/brown. Shell problems come down to three things, so check you have them all fixed: First, the water needs to be clean. Dirty water promotes Shell Rot. Secondly, you need to provide a source of ultraviolet light (specifically UV-B). A standard "reptile basking lamp" will take care of this. Finally, you need to give your pet enough calcium in its diet. Dried turtle food on its own is NOT sufficient; you need to provide green foods (e.g., Elodea) plus calcium-rich unshelled invertebrates such as krill.
http://www.wetwebmedia.com/FWSubWebIndex/turtshellrot.htm
http://www.wetwebmedia.com/FWSubWebIndex/RESCareBarton.htm
http://www.wetwebmedia.com/FWSubWebIndex/resfdgfaqs.htm
If you're doing all these things, then your turtle will continue to remain in good health. If you're not... well, fix it!
Cheers, Neale.>

Water Temp Info, goldfish sys.  – 07/16/08
Dear Crew,
Hello again, this is Pierre. I have a question about my goldfish tank. The water temperature always ranges from 78 degrees F to 82 degrees F. The goldfish is happy like always, eats like a little piggy, is energetic, and displays vibrant colors. However, I know goldfish like cooler water and I want to know a safe way to lower the temperature of the water without giving the fish temperature shock. I don't know if Ice Cubes are the way to go.
Thanks again!
<Hello Pierre. For a few weeks, such high temperatures will do no harm at all. Increase the water circulation if you can, perhaps by turning the filter to its highest setting or by adding an airstone. This way, oxygen will be more effectively distributed in the water. But provided water quality remains good, your Goldfish will be fine. Cheers, Neale.>

Black Moor Problems – 07/16/08
Dear Crew
I'm really sorry for being a nuisance but I really need some help. I've never had Black moors before and my friend had got me one for my birthday from the local petstore. I've had him for a month now, and for most of this time he's been velvety black. recently I've noticed him changing colour slightly and I don't know whether it's normal or not. I'm really worried also that he's sick because he has his dorsal and pectoral fins folded against his body. he's in a tank with a comet and a shubunkin, I don't have a filter but I change the water every second day. He's still got his appetite, and he interacts with me and the other fishes in the tank. I don't know what to do and I'm really confused right now. Your help would be really appreciated.
yours sincerely
Victoria
<Hello Victoria. Without knowing precisely what the colour changes are, or what the aquarium environment is like, it is difficult to say what's going on here for sure. However, from the sound of things, my assumption is that Goldfish is reacting to poor water quality by producing extra mucous. This makes its body look more grey than black. The clamped fins would be consistent with this, too. The fact you don't have a filter is worrying: despite Goldfish often being placed in tanks (or bowls) without filters, their mortality under such conditions is very high. I'd encourage you to read something on the basic care of Goldfish, and then review whether the aquarium you have matches those conditions. Very often people make the mistake of keeping them in tanks that are too small, not using filters, or using water from a domestic water softener.
http://www.wetwebmedia.com/fwsubwebindex/goldfish101art.htm
Hope this helps, Neale.>

Re: Black Moor Problems 7/17/2008
Dear Neale
thank you so much for your help. I'm taking a look at fish tanks so hopefully they might be getting a new home, but until then is it safe to use filtered water? also the black moor is changing to a bluish/brown color and I have a comet that was pure white changing to orange, are these color changes natural? yet again than you for the help.
Yours sincerely, Victoria
<Hello Victoria. There's no point to using filtered water. Better to use dechlorinated tap water. Do big, regular water changes (I'd say 50% per week, at least). Using filtered water would get very expensive doing that, to no advantage! Goldfish like hard water, so water from a domestic water softener is bad, too. Black Goldfish sometimes turn bronze/green, and changes from white to orange happen too. Goldfish all start off as green when young, and then change colour as they get a bit older. Sometimes their genes make other changes happen too. But do make sure you understand the difference between a fish changing colour and something like Finrot, which causes bloody patches to appear on the skin and fins. Goldfish are lovely, tamable fish that genuinely enjoy human company. So spending a little time and money giving them a good home will pay you back handsomely in the long run. Good luck, Neale.>

Re: Black Moor Problems  7/18/08
Dear Neale
Thank you very much. I'm hoping that soon enough they'll both be back to normal, its odd that the shubunkin hasn't been affected at all. thank you again, all your help is greatly appreciated!
yours sincerely
Victoria
<We're happy to help. Keep reading, and keep enjoying your fish! Cheers, Neale.>

UV Lighting for Reptiles: A new problem with high UVB output fluorescent compact lamps and tubes?  7/15/08
Hi Neale
Christine over this way. I just wanted to thank you for all you help answering all my questions. Also I just came across this on the internet and thought you may find it interesting. I think this is what is wrong with my turtles.
I think everyone needs to read this link and not use the UVB lights.
Thanks again Christine
http://www.uvguide.co.uk/phototherapyphosphor-cases.htm
<Hello Christine. This is one of those situations where humans tend to be bad at judging risk. The same way we feel happy in cars (which have an abysmal safety record) yet nervous in aeroplanes (the safest way to travel). This report sites a few (twenty) cases of reptiles getting sick from one particular brand of UV-B lamp. Yet the numbers of captive reptiles in bad health because of lack of UV-B must run into the thousands if not millions because so many people are too cheap/too ignorant to buy these essential pieces of equipment. The laboratory work is beyond debate on this: without access to UV-B, reptiles cannot process Vitamin D correctly. See here:
http://www.anapsid.org/gehrman2.html
My worry with the article like the one you've drawn my attention to is that some people will read the article and decide NOT to use UV-B lights at all. Some of those folks out of genuine concern, others because they're cheap and can now rationalise away the need to buy a UV-B lamp. At most what that article is saying is that one specific brand of UV-B lamp, the ZooMed ReptiSun 10.0, has been correlated by some pet owners to observable health problems. However, as someone who teaches biology including statistical methods, let me make this completely clear: the authors of that web page have demonstrated no statistically significant effect at all. We do not know how many people also use ZooMed ReptiSun 10.0 and have perfectly healthy reptiles for example. If each sick reptiles are only one in a thousand healthy reptiles, then the effect is not significant. Moreover, simply because two things happen one after the other (the reptiles get sick after the new UV-B lights were installed) it does not mean the two things were actually connected ("post hoc ergo propter hoc"). These reptiles could be getting sick for other reasons, e.g., the fact the UV-B lamps used before the new ones were installed were weak, and so the reptiles had already started to develop a UV-B deficiency, but only later did the symptoms become visible. Or these pet owners could be using these high-power UV-B lamps in a way not recommended by the manufacturer, e.g., in a standard fitting that places them too close to the animal. In short, while an interesting and perhaps worrying article, reptile keepers should be fully aware that even if one particular brand of UV-B lamps may have faults or may be easier to use incorrectly, UV-B lamps remain essential parts of the kit and must be used. Cheers, Neale.>

Re: UV Lighting for Reptiles: A new problem with high UVB output fluorescent compact lamps and tubes?  -07/18/08
Neale,
Thanks for your reply. I will absolutely continue to use the UVB light, as you said it is vital for my turtles to live as with all other reptiles. I just think that these companies that manufacture these lights should be more careful and let the consumer know the effects this could have on all reptiles if not used properly. People grow to love their reptiles and for something to happen to them is devastating. Without the knowledge and time of helpful people as yourself that we could rely on, some of us (especially me) would never know what to do to keep our reptiles safe and happy.
Thanks once again Christine
<Hello Christine. I think you've hit the nail on the head. Researching potential equipment purchases is just as important as finding about a pet animal before you buy it. Some brands and models may well be better than others, and discussing purchases on the various pet-keeping forums is always worthwhile. As you express clearly, owners can develop a real bond with reptile and amphibian pets, even if it isn't always clear that those animals take much interest in us! My main worry in the reptile-keeping side of the hobby is that so many people, especially children, buy these animals without doing any kind of research at all because they are "cool". Only later do they realise that in many ways reptiles are very demanding and expensive animals to keep. Cheers, Neale.>

Betta hernia?
Hi, I'm pet-sitting a male Betta fish right now, and today my family and I noticed a longish pink thing trailing down from the underside of his belly. He seems to be moving around just fine, but we're not exactly sure what to do! Does he have a hernia, and if he does, what can we do about it?
~ Stephanie
<Greetings Stephanie! Assuming that this "thing" is merely a long, string-like thing emerging from the anus, what you're seeing is faeces, and more specifically constipation. Bettas that are fed nothing but flake/pellets are prone to this problem, and in the long term it can cause serious damage. So recommend to the pet owner he/she feed a more varied, healthy diet that contains not just dried foods but also things like live or wet frozen daphnia and brine shrimp. I'd recommend limiting dried foods to only 50% the diet for any fish, including Bettas. Cheers, Neale.>

Re: Red Devil Has Not Eaten in 1 Week! - 07/13/08
Red Devil Rolling Over
Thanks. Every day it is fish fish fish all day! Yes the washing machine broke. Yes the teenager is giving me problems. Yes the house is a mess. Today it was evident that the goldfish have the ich so I had to learn how to take down the Magnum 350 and the Fluval without flooding the house and medicate them. Taking those down was a huge project for us. Now that I understand it will be easier in the future. But once again I am really concerned because their tank has not cycled and I do not know if the RidIch will harm the biological filter or the Plecostomus. On and on it goes. Hopefully in another 2 weeks we will be out of the woods.
Plus now that I have the heater on the Red Devil and his water is a bit less cloudy I see that he is rolling over and flashing (?) and do not know if this is normal cichlid behavior or if I should look through the murkiness and try to diagnose a disease. He is moving about more than he has in days - doing the building, spouting rocks and so he seems a bit better. No-one really discusses their behaviors enough for me to determine if I should look for disease. Is rolling over common? Sad for me that the most tacky piece of decor that he came with - and that I was planning on replacing - he is most attached to - and when I move it his nest moves to be by that piece! Funny.
< When fish turn on their sides and seem to dash against objects it usually means that something is irritating their skin. Could be parasites or pollution in the water. Some medications can harm the biological filtration, even when they say they are safe.-Chuck>

Re: Red Devil Has Not Eaten in 1 Week!  7/15/08
Red Devil Scratching
Yes, now that I have to medicate the goldfish I understand that it will take much longer to for their tank to cycle properly. Since we had a bit of a cold spell that brought on the ick I am going to put a heater on their tank and set it so it kicks in only with temperature changes. Would like to put a chiller on there too but the cost of that along with the R/O water is getting crazy for me.
The cichlid has been coming out at night and not rolling or flashing so I do not know if he is better or not. Are they primarily nocturnal?
< No not really. Chances are the irritation still exists.>
We are keeping his area dark as much as possible and the cloudiness is finally starting to clear. Again, I have tried to research behaviors and have read of people wanting their fish to roll over like a dog but do not know if this might be normal happy behavior or evidence of his world gone awry with the bad chemistry upsetting his equilibrium.
< I think it is more of the latter.>
I know he is far from well because he is hiding in his corner that he built for himself and if he were well he would be far more curious about us and our activities. Even with the heater I see that the temperature still can fluctuate 3 degrees during the day and night. He rolled over while visiting with my husband who loves him and animals love my husband too. They can sense it. So maybe it was OK?
< Central American cichlids can be quite responsive to people and things outside their aquarium.>
I took his rocks out for examination to see if they were calcifying and possibly adding to cloudiness of tank but the fish store guy says no. I put them back in and he is not rubbing against them. (His gravel is somehow contributing to the cloudiness in combination with the bacteria I guess. I am told that when he stabilizes I need to replace it.)
< Some substrates are not suitable for aquariums. Most of the sand/gravel from pet shops should be ok after it is rinsed.>
Honestly I am having a bit of difficulty with your website because there is so much I suppose. When I try to follow the advice to read the Dr. on Marineland's' site I cannot find him. Trying to research R/O water and buffers brings up a zillion articles for me to read so I am overwhelmed to say the least. Thanks. Got to go make dinner now.
< Dr. Tim Hovanec is no longer with Marineland and has taken his articles with him to start his own business. After I talked to him has agreed to repost his articles on his own website in the near future.-Chuck>

Freshwater Aquarium Questions. Goldfish, sys.... mostly   7/15/08
The Questions in this message have been put in BOLD font for your sanity, lol, the rest is details.
<Not much use here I'm afraid, as the messages get here in plain text. So I guess I'm going to lose my sanity.>
I have a 5 gallon Eclipse Hexagon tank with a LOT of plastic plants (like 10 or 12 plants), a sterilized "hermit crab shell", a "cave" made of 3 rocks, natural colored quartzy looking aquarium gravel, an incandescent light bulb, a small (2.5 inches without tail fin) black moor goldfish, 2 silver hatchet fish (1.5 inches long each) and varying numbers of snails, the population of snails generally self regulates itself I usually never have more than 8 living snails that are visible, as of right now there are 4.
<OK, this tank is _way_ overstocked to start with. Goldfish need, minimum, 20 gallons a piece, and I'd reckon a 30 gallon tank so that you can keep at least two specimens (they're social, after all, and don't like to be "in solitary confinement"). So your number one priority here is to upgrade your tank. Next up, hexagonal tanks are a bit of a gimmick really. The only people who buy them are those without much fishkeeping experience. So yes, the manufacturers are trading on ignorance. You see, they are too deep relative to their surface area, so for any given volume you can't keep as many fish as for a similar capacity rectangular aquarium. The only things they're useful for are Bettas and systems containing only shrimps and snails. Do remember there is no such thing as a "small" Goldfish, and even your Black Moor will quickly grow into a 20 cm/8" monster if looked after correctly.>
This tank was fully matured for a year before I put any of these animals in there, because the tank was previously used to house baby live bearers for my mothers old 55 gallon (without the decorations, but the same gravel). When my mom sold the big tank, I kept the small tank running with the hatchet fish in it.
<Hmm... would have sold the hexagonal tank and kept the 55 gallon tank myself. No discussion about which is better.>
The hatchets weren't intended for the 5 gallon, they lived in my mother's tank, but she bought a catfish that got large and ate most of her fish and at the time she sold it, there was only a Pleco and the catfish and the hatchet fish left out of many live bearers, including mollies and platys, mom didn't want the hatchet fish to be eaten, so they put them in the "baby tank" and when we sold the big tank, the new owners didn't want the tiny little hatchets, so they stayed.
<With you so far...>
Anyway, fast forward. My aunt thought it would be a nice idea to buy me a black moor goldfish for my birthday, without asking me or letting me know, she figured I already had the tank, so it was alright, so the Black moor lives there too, the snails came on purpose for help with algae. Since the tank was so old before the adult fish got there, it was quite well established. My question is, I recently have been wanting to put live plants in the tank instead of the plastic ones, but I don't know if it would upset anything or even if the plants would last with the goldfish.
<Goldfish eat plants. They are herbivores. In fact they get very unhealthy if not given live plants to eat...
http://www.wetwebmedia.com/FWsubwebindex/gldfshmalnut.htm
So no, live plants aren't really an option. Besides, you'd be hard pressed to illuminate a 5 gallon system sufficiently that plants would grow.>
This tank has been running in the current state for almost a year itself, so the biological factor is established. I do not have a test kit (I know, I know I should have one, but I never got around to it, with the babies we didn't use one, so I just never got into the habit of using one. I change 50% of the water with a gravel vac once or twice a month, I never change the filter media, I just rinse it under dechlorinated water every week and put it back in, it has a bio-wheel which is never touched and there's algae growing on the decorations, which I don't mind because it never gets on the walls and the snails seem to have a tough time scraping algae off the rough rock cave anyway. I use Tetra Aqua Aqua Safe Tap water conditioner with Bio-Extract for the water changes and once or twice a month I drop in a Jungle Bowl Buddy fizzing tablet to promote their slime coat and reduce ammonia slightly, once a week I add two or three drops of AP Crystal Clear water clarifier, which is half the recommended maintenance dose, but I always just use half the recommended dose of it just to be safe, I also use monthly a half tablet of Jungle Fizzing Ammonia Reducing Tank buddy (since a whole tablet treats 10g) and on occasion I add a tiny pinch of API aquarium salt to keep my goldfishes gills in good shape. I feed my fish Wardley Tropical flakes and Aqua-Buddies Goldfish pellets, I feed them two different forms of food because the hatchets can't fit the pellets in their mouths and the greedy goldfish goes for the big pellets before he goes for the tiny flakes, occasionally I put in a piece of fresh raw romaine lettuce for the snails to eat. Besides obviously getting a test kit, what else can I do to keep my goldfish and hatchets healthy, buying a new tank and decorations and restarting a whole new tank is not an option right now, I enjoy the fully matured tank I have and for the time being everything seems alright, no distress and healthy appetites and active movements all around, I may buy a new tank and get it started maturing sometime in the future, but right now I don't have the money to start all over again. I am very very sorry this message is so long, but I wanted to be sure you understood the entire situation.
<Didn't spot any other questions in here. But the answer is "get a bigger tank" because this one is a disaster waiting to happen...
http://www.wetwebmedia.com/FWsubwebindex/goldfish101art.htm
>
If you could please recommend a good test kit that will work with the products I use that I can buy online, that'd be great too.
<I'd recommend any aquarist own a nitrite test kit and a pH test kit. These two provide the easiest way to test for the two main sources of trouble: poor water quality and water chemistry instability. What you're aiming for is zero nitrite at all times, and that the pH remains stable between water changes. Goldfish prefer hard, alkaline conditions, so the ideal is a pH around 7.5, but the precise value doesn't matter so long as it doesn't keep changing.
Hope this helps, Neale.>

Fish inquiry... Tetra, small Characin sel., comp.   7/15/08
Dear Crew,
I'm pretty new to the fish keeping hobby but I have been researching online. Here is my dilemma. I have a tank with serpae tetras who keep to themselves (thank god), zebra danios, a rubber lip Pleco, and platys.
<A "courageous" combination to say the least. Serpae tetras aren't my recommendation for the community tank, as you seem to realise.>
I need a somewhat larger fish to be the so-called "attraction" fish but I don't know which kinds will live peacefully with my other fish.
<With Serpae tetras, not much! The obvious choices -- Angelfish, Gouramis, etc. -- will simply be pecked to death.>
I have a 26 gallon tank, its pretty tall and its a bowfront. I've been deciding between some kind(s) of gouramis, freshwater angels, or silver dollars.
<No, no and no respectively. The Gouramis and Angels will be nibbled to pieces, and the Silver Dollars get far too large for a tank this size.>
Which species is best suited for my tank and well get along with the tankmates; and if you have any other suggestions about other species please let me know.
<To be honest, I'd not bother. I'd either up the numbers of the species you already have, or perhaps add an interesting catfish of some sort that can keep out of trouble. Serpae tetras for example look their best in big swarms of dozens of specimens, when their feeding frenzy behaviour becomes quite something to watch. Of course any catfish that avoids trouble, like a Synodontis, isn't going to be showpiece fish you're after.>
Also, ever since I transferred a red wag platy over to the bigger tank, it has constantly been hiding even though none of the other fish harass it.
<Almost certainly it has been nipped by the Serpae tetras and is keeping a low profile. Serpae tetras don't just bite the fins from other fish but also the scales, and such damage can be difficult to see.>
Is there any way I can solve this problem?
<Not really, no.> Thank you, Pierre
<Hope this helps, Neale.>

Re: fish inquiry  7/15/08
Thank you for that info. Do you think there are any tetras that I could replace the Serpaes with that would get along with angels or gouramis? I might decide to take them back to the pet store.
Pierre
<Angelfish will simply view very small tetras, such as Neons, as food, so you have to be careful. Certain other tetras, can be just as nippy as Serpae tetras and will nibble on the Angels and Gouramis. Black Widows (Gymnocorymbus ternetzi) and some of the other Hyphessobrycon species fall into this category. My honest recommendation would be to replace the Serpae tetras with more Zebra Danios. Here's the thing: if you have one big school of a schooling fish, it looks so much better than two small schools of different schooling fish. You would then have one species at the top (the Danios), one in the middle (perhaps a pair of Angels or a pair of Lace Gouramis) and then your catfish at the bottom. Instead of a jumble, you'll have an nice ordered arrangement. Otherwise, consider X-Ray tetras (Pristella maxillaris), Diamond tetras (Moenkhausia pittieri), or Lemon tetras (Hyphessobrycon pulchripinnis) are excellent community tank tetras and the right size for your aquarium. But as I say, better to have twelve schooling fish of one type than six of two different types.
Cheers, Neale.>

Re: fish inquiry (Dwarf Gouramis, Angelfish, selection)   7/15/08
I'm going to exchange my Serpaes this evening. I think I will most likely go with the large school or danios and either dwarf gouramis or angelfish. I'll let my little brother pick. Thanks so much for all your help! Pierre
<My advise to anyone is don't get Dwarf Gouramis (Colisa lalia, including fancy forms like "neon gouramis", "robin gouramis", and so on). Unless wild-caught or locally bred, which the ones in shops most certainly are not, these fish are extremely likely to carry an incurable viral disease known as Dwarf Gourami Iridovirus. One estimate by vets puts the incidence at 22% for Dwarf Gouramis exported from Singapore. Because the virus is extremely contagious, you only need one infected fish in a batch to ensure all the others get sick too. The number of Dwarf Gourami e-mails we get would astonish you, and they really are a complete waste of money. Almost every retailer I know dislikes stocking them because so many die in their tanks, but there is sufficient demand among newbie aquarists who don't know better that they remain profitable. It's a shame, because twenty years ago they were quite good little fish. Nowadays, you're better off with the hardier (if slightly bigger) Colisa fasciata and Colisa labiosus.
http://www.wetwebmedia.com/FWsubwebindex/dwfgdis.htm
If you buy Angelfish, do remember these are territorial cichlids. You cannot sex them. But if you have two males, in a small aquarium they are very likely to become aggressive towards one another. If you buy a singleton, then there's an increased chance that Angelfish will "go rogue" and attack other fish in the tank, so that approach is not without risks. The standard way to keep Angels is to buy six specimens, let them pair off as they mature, and remove the four surplus fish when the time comes. Because Angels are such popular fish, rehoming adults is not difficult and any half-decent aquarium shop will take them off your hands. Cheers, Neale.>

Re: fish inquiry (Dwarf Gouramis, Angelfish, selection) 7/17/2008
Can the dwarf Gourami virus spread to other species of fish or only the ones in the Gourami family?
<This is a complex question. The short answer is yes, the virus can spread to other species in other families. But so far as I know, the only scientifically documented example is where Dwarf Gouramis Iridovirus appears to have infected Maccullochella peelii, and Australian perch-like fish belonging to the Percichthyidae family. There are no reports that I am aware of where the virus has caused problems in other species of Gourami though. Hence my recommendation that Colisa fasciata and Colisa labiosus are safe, reliable alternatives. Yes, they aren't quite as colourful, but they are still lovely fish and much, much more likely to live long and happy lives. If you want a small, non-aggressive Gourami for the community tank, these are the ones to go for. Cheers, Neale.>

 

 

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