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FAQs on Establishing Nutrient/Biological Cycling in Marine Systems,
Methods/Techniques Related
FAQs:
Biological Filtration,
Seeding Filter Media, Live Rock/Sand,
Using Livestock, Cycling Products: By
Manufacturers/Names: Bio-Spira, Cycle...
Chemical Feeding, &
Establishing Cycling 1, Establishing
Cycling 2, Establishing Cycling 3,
Establishing Cycling 4, Establishing 5,
Establishing Cycling 6,
Establishing Cycling 7, Marine
Cycling 8, Marine Cycling 9,
Marine Cycling 10, & FAQs on Biological Cycling:
Science/Rationale, Anomalies/Fixing
1, Trouble/Fixing 2, &
Fluidized Beds,
Undergravel Filters/Filtration, Denitrification/Denitrifiers,
Ammonia, Nitrites,
Nitrates, Phosphates, &
Nutrient Export, Related Articles:
Establishing Cycling,
BioFiltration, |
Patience, time going by, ten, make that ten thousand deep breaths... |
Cycling Large Store Systems 9/29/2009
Hello WWM Crew!
<Chris>
Sorry if this has been covered previously, your website has such a huge
amount of useful information that sometimes it is extremely hard to find
very specific things.
<How might we improve?>
I am in the process of building a retail tropical fish store in Southern
California and was wondering if you had any tips or tricks to help me
have a completely cycled system for my store. I will be setting up
centralized filtration(cold, fresh, salt, coral) and will have a total
of about 3000 gallons spread across all of my store tanks. Unfortunately
the water is one of the last things that will be going in, and if
possible I would
rather not wait a month(or two or three) for my tanks to fully cycle.
Now the health of my livestock is a priority but I was wondering in your
experience, do you know of any ways to overcome the cycle?
<Yes>
I was thinking of possibly asking some of my livestock suppliers in LA
if I could give them a fluidized bed filter top put on some of their
systems for awhile to populate some bacteria colonies, do you think they
would do this or do you think this would be adequate for not having to
cycle my system?
Is there anyway around this with such a large system?
<I would go the "Blitzkrieg" route here... Use commercial prep.s ("One
and Only", MicrobeLift, SeaChem's line...) AND old filter media,
substrate... and a source of ammonia...>
What have you guys done when opening up a new store?
<Oh yes>
Any input would be great and I appreciate all that you guys do for the
hobby!
Thanks,
Chris
<Welcome, and congratulations on your new store. Bob Fenner>
Re: Cycling Large Store Systems 9/29/2009
Bob,
<Chris>
Thanks for the quick reply!
<Welcome>
I don't think you could improve it, you've just got what seems like more
raw information on your website than the rest of the net combined! It's
like your website is connected directly to all of your years of
experience, so much good information for the hobby!
<Thank you... I realize of course the breadth or maybe scope of our
interest is large... taking in business, science, hobby, engineering...
Plumbing, carpentry, electrical... diving, photography, ethical
issues... And have a good working knowledge of how the materials
can/might be organized... Akin to my file cabinets and hard drives...
But am always open for input re further improvements>
So would you recommend one product over another, or use all of them in
combination?
<I like the Tim Hovanec product (either perturbation) best...>
Also, for old filter media, I don't currently have a large enough salt
water system to get older media from, I currently only have 3 nano
systems in my tiny apartment all running Berlin method, what would you
recommend for older media for my salt systems?
<A visit to the wholesalers... ordering a few boxes of their "best cured
rock">
I have larger fresh water systems to get media off of so thy won't be a
problem.
And for ammonia, I don't want to subject livestock to high ammonia and
nitrite levels, so to create more ammonia what would you recommend? Raw
shrimp from the market? Household ammonia? Or would it be fine to add
hardy fish in along with the bacteria products?
<Endogenous or not... just not more than 1.0 ppm total free ammonia.
Likely one "dose" will do it>
Thanks again for your help,
Chris
<Be seeing you, BobF>
Nitrogen cycle speeding up 01/17/09 Hello. I am trying to
set up a new tank, as I mentioned before, and I am trying to get fishes
in it as soon as possible. <You really shouldn't try to rush these
things.> So I needed to know if there was a way to speed up the
nitrogen cycle for the aquarium. <There are some products that
*claim* to do such. They often claim to be bacteria cultures that
supposedly speed up the cycling process. However, I doubt they work.
I've tried some of them myself and they just don't seem to work. Maybe
the advance the cycle a few days, but not by much. There are other
products that remove nitrates and nitrites. These might actually slow
down the cycle.> If there is please let me know. Thanks a bunch.
<I do advise you just try to be patient. Best, Sara M.>
SW Cycling - 3/10/2006 Hello there, <<Hello Tiffani.>> I
have a quick question (the set up into it is a bit longer). Well, at
least I hope it has a quick answer. I have been cycling my 46 gallon
bow front with about 40 lbs of live rock for very close to 4 weeks
now. My ammonia level is .25 ppm. In fact, it has been at that level
since I began testing the water parameters, which I began 3 days after
my initial set-up. I saw the huge spike in nitrites, which has since
dropped to 0 and has been there for a little over 2 weeks. My nitrates
have been hanging out at 20 ppm as well. They were much higher at one
point, but at the 20 ppm level for about 2 weeks. I have done several
water changes, as I have read that can lower the nitrate level, however,
no such luck. My question is, should I still be registering ammonia if
the nitrites are clearly 0? My impression of the whole cycling process
was that ammonia is converted into nitrites, then they into nitrates. I
just assumed since the nitrite was 0, the ammonia would be as well. My
SG has been 1.022 all along. The temperature has been steady at 78-79
degrees. I am wondering if it could be my test kit giving me a false
positive on the ammonia. I am using the Marine Lab by Red Sea.
<<This could be the issue, of you could be experiencing additional
die-off in the live rock. Do buy another brand of test kit, and have
your LFS test your water, to ensure the accuracy of the reading. Also,
have you checked your source water? Test the water you add to the tank,
to see if this is the source of ammonia you are seeing.>> I am
anxious to get started with adding some livestock, but patient. <<A
virtue in this hobby of ours. You will thank yourself later!>>
Thank you in advance for your time and for maintaining such a thorough
and wonderful website. It is much appreciated. Sincerely,
Tiffani Tobin <<You are quite welcome. Glad to help. Lisa.>>
SW Cycling II - 3/12/2006 Thank you very much Lisa. <<You're
welcome!>> I will purchase a different test kit and see if I get
different results. Not to say that things are not dying off on the LR,
but there sure is a lot of life scurrying around on them. I guess
having ammonia readings then could mean there is additional die-off. I
had not thought about that. Would I then expect to see an increase in
nitrites, because I have not over the past 2 weeks? <<It is hard to
say. Live rock often changes the typical cycling levels we would expect
to see.>> I will be sure to have an LFS test my tank water too. I
will also pick up an ammonia test kit for freshwater and see what
happens. <<Yes, as your source water may in fact be the
issue.>> Thanks again, Tiffani. <<You're welcome again!
Lisa.>>
SW Cycling III - 3/16/2006 Hello Crew, I
guess since the replying back and forth, the initial email has gone off
into cyberspace somewhere, but I still have a couple of questions. I
will try to sum up things in a Reader's Digest version. I am now
cycling for about 4 & 1/2 weeks. I have been registering 0.25 ppm of
ammonia for over 2 weeks with no change. Nitrites have been a clear 0
for the same time (I did see the initial gigantic spike in the beginning
of the cycling process, with the drop to 0). Nitrates appear to now be
a little less than 20 ppm, but not quite 10. Anyway, I was (in a
previous email) wondering if it could be my test giving me the false
positive on the ammonia. So, I went and bought a different test for
ammonia, a dip test into a vial of tank water. I have tested 4 times in
the past 3 days and that is registering no ammonia levels. I also
purchased a SeaChem Ammonia Alert that suctions inside the aquarium for
a constant level of ammonia. That has been in place for 3 days as well,
and that also shows no readable ammonia. I just do not know how
reliable that is. I, of course, have no intention on relying on that
alone in the future. Should I believe that it is actually possible
there is no ammonia and my tank may be cycled at this point?
<<Yes.>> Two test methods would indicate yes. If there is a problem
with My Red Sea Marine Lab test kit for ammonia, do you think it is
possible all other results are inaccurate regarding other parameters?
<<If ever in doubt, use a secondary test/method.>> Sorry, I think I
have bordered on a novel version. <<Not a problem, it helps me
remember the original question, when it is not attached.>> I am
sorry, one more question. Reading through your site about water for the
tank...I want to clarify something if I can. If I allow water (for top
off or salted for a water change) to sit in a container with a power
head and thermometer for at least a week, does it then NOT NEED a
dechlorinator? <<The chlorine will gas off over time, but other
harmful substances will remain. I use Prime, by Seachem.>> Thank
you so much in advance for your time with this matter. Do you ever just
feel like slapping people like me? <<Not at all! Lisa.>>
Sincerely, Tiffani Tobin
Small marine system cycling Hello, I am a newbie trying
not to kill any more fish. To make a long story very short, the
Aquarium was a reward for my daughter being potty trained.
Needless to say it has almost become an obsession for me. We/I
started out with a freshwater tank... four fish and all was well.
Added four more and one was very ill. The girl at PetSmart said the
female was pregnant... not so and killed the tank. Daughter was very
confused about the explanation. Four hundred dollars more and
researching facts, we decide to go with a Marine Tank. I set the 30
Gallon tank up with filtration, protein skimmer, and heater for a
100 gallon tank. Moving and heating water is not a concern. I
stock the tank with 10lbs of "live sand" and use another 10lbs of
gravel. I then add Real Ocean water from PetCo and use some
bacteria accelerator products. Three weeks later after daily testing
of the water...I add four fish (two Yellow Tail Damsels and two
Tomato Clowns). Everything seems to be going well. The daily
water tests are great and I think I have the whole thing down. I
now have a problem... four weeks after the addition of the fish, all
holy hell is going on with the chemistry of the water. It appears
the tank is cycling (ammonia climbed then declined and nitrite has
risen substantially). This seems normal, but I have a few questions
(and fears): 1. Does this sound normal? <Happens> 2. How
long before the nitrite lowers and the nitrate rises? <Likely a
few weeks> 3. I have changed the water weekly (20%) Do I need to
change it more? <Only if ammonia or nitrite exceeds 1.0 ppm or
your fishes appear in dire trouble... changing the water may well
forestall the establishment of cycling> 4. The tank now has what
I can best guess as Diatoms (brown/golden) and should they go away
soon? <Will, with the cycle, time going by... replaced by other
types... greens> 5. Am I being overly paranoid...should I let
the cycle take due course? <A bit of both> Your help is
greatly appreciated, and the fish stand a better chance of
surviving. I have spent more money on chemicals and not used them
with a fear of waking up to the horror of trying to explain to my
daughter what happened. I did use an ammonia Detox after I felt the
readings were too high. Sincerely... Tom <Take your time
here... read, on WWM, the Net re cycling... Bob Fenner> Re:
New Tank Thanks for the fast response... the fish are fine
and the tank is maturing. So far the Ammonia levels are at zero...
but the nitrite is a little high and the nitrate is climbing. For a
beginner it seems all is well with the tank cycle. I am getting
used to this fascinating hobby. I think after the nerves settle, a
75 gallon tank is in order. It appears I like this more than my
daughter likes looking at the fish...maybe a tie... Tom <Perhaps
a fish theme tie... Bob Fenner> |
Lighting after cycle Hello.. excellent website.. Ok I started
cycling my 55 gallon reef tank on May 10 and on the third day the
ammonia peaked and then started to drop down.. then on the sixth day the
nitrite peaked to 5 ppm and then dropped to .50 ppm the next day (what
up with the sudden drop?) >>It means you've got bacteria establishing
VERY quickly. >I'm cycling with LR and live sand >>Well, THAT
would explain the sudden drops! >CPR protein skimmer r2, and I have a
built in wet dry filtration.. it seems my tank is almost done cycling.
>>Yep. Once ammonia and nitrite are zero, and nitrate begins coming up,
I'd call it cycled, too. >Now my question is how long can I go w/out
light or can I because I ordered my pc lighting system through the
internet and it still hasn't arrived.. (it should have been delivered
already) and now I'm starting to get worried! >>Unless you have
photosynthetic specimens (and at this stage you better not!), there is
absolutely no need for lighting. >What should I do in this situation?
>>Call the company you bought your lights from, and call the shipper,
and be a squeaky wheel. (They've probably arrived by now.) >One more
question.. my substrate is 1 1/2 inches and I want to add like an inch
more.. can I add live sand during or after the cycle and will it mess
with the cycle or the wet dry filter, or should I wait till all the sand
reach the bottom before I get the filter starting again? >>Won't do a
thing to the w/d, I'd add it to the live sand now, in bits, over
sections of the sand, say, 1/3 every few days. Test to see if it's
causing any spikes (though I doubt it will). You can seed it a little
faster by using Bio-Spira then adding some fish food or raw shrimp to
the tank to cause another nitrogenous spike. >I'm planning to add 20
more lbs... thanks your guys opinion means a lot to me.. thanks again..
James >>And there you have it. All should be going well at this
point. Marina Help With Cycling Fishless for Newbie
>Dear Bob, >>Hello Nahid, Marina is answering for Bob today. >I am
a new beginner for marine aquarium. Sir I like to know that I have
been never success in keeping a marine aquarium. Sir very often when I
mix the marine salts, the nitrite level goes up and all of a sudden
comes below. >>I am not familiar with sea salt mixes that can
cause nitrite levels to go up on their own. However, I believe you need
to become more schooled on nitrification. This is where one kind of
bacteria "eats" ammonia, and makes it into nitrite, then anther kind of
bacteria "eats" the nitrite and makes it nitrate. >What you want to
see will go something like this (when you test) 1: high ammonia 2:
high nitrite 3: ammonia begins to drop 4: nitrite begins to drop
and nitrate begins to rise 5: nitrite drops and you get higher
nitrate readings >>High nitrate are then controlled in several ways,
simplest for beginners is water changes. >But when I started adding
fishes, they died one by one. >>You may be adding fishes that are
too big, or you are adding them too fast and they die of the high
ammonia and/or nitrite. This is not uncommon. >But from books I read
to use ammonium chloride during the time of cycling and amount of
ammonium chloride is not mentioned to be used. Can you help me out
what quantity of ammonium chloride to be used per gallon. I will be
very much thankful. Yours sincerely, Nahid , India. >>Better
yet, and much easier for you, is to put a piece of raw shrimp, crab, or
fish (some fresh seafood) into the tank and allow it to rot (many people
like to tie it up in a piece of women's nylon hose or a piece of white
cotton cloth). Then, after two or three days you will begin to test
the water. Watch for the rising and falling as I've outlined
above. When you have ZERO ammonia and nitrite, you will know you have
bred cultures of nitrifying bacteria. Then, when you add your fish,
ONLY add one at a time, and we do encourage quarantine (search our
Google bar for "quarantine"). I must note that I do not know the size
of your tank, nor your filtration, so I cannot recommend what fish to
keep, nor in what order to introduce them. These are very important
considerations as well. I hope this is helpful information. Marina
Patience Is The Most Important Additive! Hi Scott <Hi there!>
I had my water tested a few days ago and here are the readings
Ammonia : 10-20 Nitrate : 0-10 Nitrite - 0.1-0.25 PH - around
about 8 <Sounds like a normal tank start-up/cycle. Just hang in there
and be patient as the tank cycles...> Please comment on my readings.
Looking at these readings how much longer do u think I should wait
before I could possibly add fish. <Hard to say, as every tank
cycles differently; it can take as little as 10 days, or as much as 3
weeks. Unfortunately, nature is one of those things that we impatient
humans cannot rush! It will not be safe to add fishes until the ammonia
and nitrite return to undetectable levels.> I have cut down the water
changes to once a week and I was thinking of testing again this coming
w'end and the next w'end. Do u think another 2 weeks will do?
<Don't do any more water changes until the tank finishes cycling. At
this point- less is more...Do nothing...It's important not to mess with
things now!> Thanks Again Regards Ziad Limbada <You're right
where you want to be, Ziad. Just be patient, monitor the water
parameters every several days, and things should continue just fine!
Good luck! Regards, Scott F> Saltwater tank cycling...
>Greetings! >>And salutations, Marina this morning. >I have been
reading your website religiously for the last two weeks and I am amazed
at the time and effort that the staff puts into answering readers'
questions. >>He.. hoo are WE! >I am a newbie to the saltwater
world, and recently my roommates and I set up a 50 gallon (4 sq ft
surface area) tank. The substrate is 2/3 crushed shell with a
"mini-beach" of live sand (3 inches deep) taking up the other third of
the aquarium. There are approximately 20 lbs of the branch-style live
rock with purple, red, and white coralline algae. We have a Berlin air
lift protein skimmer (with prodigious skimmate produced), a 360 gph
paddle-wheel-and-activated charcoal filter, and a supplemental air stone
to provide additional aeration and water movement. Our tank has been
up and running for two weeks now with a four very small fish that are
active, colorful, feeding, and healthy-looking. We also have 5 hermit
crabs, and two snails of the Turbo persuasion. Our nitrite level
peaked, and nitrate is now at 0.2. However, in the last several days,
our nitrite has begun to rise again and our tank has a lush covering of
brown algae. After reading your FAQs, I understand that this is probably
of diatomaceous origin. I suspect that we are overfeeding and keeping
our lights on too long, and we have recently taken measures to control
this. I was wondering: Is algae grown indicative of completion of a
nitrite/nitrate cycling, or does it comprise its own cycle? >>No,
algal growth is indicative of excess nutrients, light being one of
them. Nitrate is a nutrient, as are phosphates, and dissolved organic
compounds (DOC's). >Will the oxygen saturation of the water decrease
as these brown algae cycle out? >>Yes, but with the water movement
you describe it would be negligible. >Is it now safe to perform a
water change of 10-20%? >>With the peaks you describe, and assuming
you haven't made any water changes, I would suggest a 50% change, with
no vacuuming or disturbance of the substrata. Do know that the shell
substrate *will* accumulate detritus. I recommend a serpent star or two
to help with this. Also, once the tank is well on its way, I recommend
vacuuming the substrate of shell with each water change--1/3 at a time.
>Aside from stopping the overfeeding/shortening the light exposure, are
there any other means of controlling the algae this early in our tank's
life? >>You could try something like a tuxedo urchin, though
they're more known for helping eradicate hair algae. I could suggest
abalone, but they are voracious feeders of the algae. Let the diatom
bloom do what lemmings do, it will eventually starve itself out. If you
are not living in a state with restrictions on Caulerpa (in California
we are allowed NO feathery fronded species), then that can be used quite
effectively as a natural means of outcompeting the diatoms for
nutrients. >What types of algae-controlling organisms will not
compete with the lawnmower (Jeweled) blenny that we have our eyes on?
>>See above. Do hope this helps! Best of luck McGregor. Marina
When is cycling finished? Steven, <David Dowless answering
this evening> Sorry to be such a pest, but I'm just a newbie to the
Saltwater tanks and there's soooo much to learn. <And
unfortunately...no one will ever be able to learn all of it!> As for
my tank equipment in addition to the UGF, I also have a BioWheel and
10lbs. of live rock. Will my nitrates still continue to be high?
<The UGF and BioWheel will both work to create nitrates. I would add
more live rock and a protein skimmer.> It's only a 20gal. tank, and
I'm obsessive about topping off water, making sure the temp is right,
etc. It's been up and running for 6 weeks now, and I thought the
initial "cycle" would be done by now. Am I wrong? <No way to
tell unless you've been running ammonia, nitrite and nitrate tests.
THESE TESTS ARE A NECESSITY if you want to be successful in this hobby.
There is no hard and fast rule about cycling although I would guess your
tank should be about finished. Test the water. When you finally begin to
add fish do it very slowly, one at a time and feed lightly> I know I
have to keep up with the water changes, but I thought that since the
tank is new and still cycling that I shouldn't do any changes in the
water until all the parameters were within normal limits. I've spent
hours and hours at this website (usually late night) and sometimes the
more I read, the more confused I become. Everybody you talk to seems to
have a different opinion so that's why I'm writing again. Hope you
don't mind. <I don't exactly agree about this last point. There are
differing opinions on the best lighting, the best filtration, fish that
are compatible etc. But some things in this hobby are known as fact. For
example...the cycling event that you speak of has been well documented
for many decades and we all know there is no preset time for cycling to
stop. The event is ammonia, then nitrite then nitrate. The CMA book (by
Fenner) shows a time line of 36-48 days...but there are no guarantees.
Patience my friend> I just want to make sure that I'm doing
everything right. <Knowledge is the key to success in this hobby.
You're on the right track. Keep reading and learning. Eventually you
will have enough "opinions" that you will be able to decide what makes
sense for yourself> I also have one more quick (promise) question for
you. Should I wait to add some new additions (in particular a cleaner
shrimp) until my nitrates drop? <My friend you need to keep
reading. Shrimps of any kind would never be my first choice of critter
in a brand new tank. They're very sensitive to water quality> Thanks
bunches. <It's an honor to serve. David Dowless> Maureen
Trigger and ammonia Bob, <Rob> After about 1 week now, the
ammonia level in the new tank is near 1ppm and the nitrite level is at
about 0.2ppm. I am planning on doing about a 15 to 20% water change
tomorrow. <I would wait on this... unless there is some compelling
reason... the change will too-likely produce a "metabolic check" on your
nitrifying microbes... forestalling the establishment of nitrogen
cycling... Wait till both ammonia and nitrite are zero> I have not
turned on the skimmers in the new tank (b/c I was advised to leave them
off during the first month). <Mmm, I advise you to turn on your
skimmer/s> Given the current situation, would it be wise to turn them
on to remove some of the pollutants from the water? <Yes> Thanks
again for all your help. <You're welcome. Bob Fenner> Rob Stein.
Will Elevating Temperature Hasten Cycling?... Hi Bob, I
have a new tank with live rock .Its still cycling, can I raise the
temp to 84F to make the bacteria grow faster or does doing that
would affect the living organisms on the rocks ( there is a lot of
invertebrates)? Thank You. <Good question... don't know... but
worth experimenting... There is likely an "ideal temperature/range"
for doing just this... If your rock hails/hailed from a more
tropical setting, perhaps it will cycle faster through the process
at an elevated temperature. Do take care to be even more careful in
monitoring water quality... adding alkalinity, making requisite
water changes... Bob Fenner>Speeding the Cycling Process
Hi Bob, I have a new tank with live rock. It is still cycling.
Can I raise the temp to 84F to make the bacteria grow faster or does
doing that affect the living organisms on the rocks (there is a lot
of invertebrates)? Thank You <I would not recommend raising
the temperature to quicken the cycling. You will be better off
learning patience now. -Steven Pro> |
Question About Tank Cycling Hi Bob, I have a question about
the cycling of my newly setup 125 gallon saltwater tank which I will use
for fish only. I have never had a saltwater tank before, so if some of
these questions sound off the wall, sorry. Here's my situation: I
purchased this tank used from a private individual whom previously had
it setup as a freshwater tank (but also had it setup as a reef tank
before that). He drained it and tore it down just two days before I
purchased it. With it he gave me a huge Tupperware container full of the
gravel mixture that he already had in it (it was a 50/50 mixture of
gravel and crushed coral). I took it home and set it up the next day
using most of his gravel plus 30lbs of new crushed coral that I rinsed
thoroughly. I added one damsel the next day, and then 14 more one week
later. <Fourteen? Ten plus four?> It has now been one week since
I have added the 14 damsels to the tank, or 2 weeks since the first
damsel was introduced. I have tested the water every day since I added
the 14 damsels, and I continually get the following results: pH -
8.2, Ammonia - .25, Nitrite - .5, Nitrate - 20. I have been very
confused about the readings because everything I have read about
nitrogen cycling says that your ammonia should shoot clear in the first
10 days then drop to 0, followed by a spike in nitrites then drop to 0,
followed by an increase in Nitrates. <Nah... many variations on the
theme here. Your readings are likely accurate> I have begun to wonder
whether or not my tank has cycled already? <Some> I read
something that said to speed up your cycling you could go to a pet store
and ask for a cup of gravel out of an already established tank. Well,
after reading that I thought about it and I did put in approximately
75-100lbs of gravel mixture out of an established tank. Could this be
the reason? Is it possible it has already cycled? <Yes, and
partially cycled> Would it matter that the gravel mixture came out of
a freshwater tank and not a saltwater tank? <Oh yes... different
bacteria involved... and a bit of a "population check" (caesura, slow
down) in the big move> The gravel did sit in a Tupperware container
for 2-3 days (there was a lot of moisture in the container). Would this
kill the bacteria? <A good deal of them, yes> Two days ago I fed
the fish more than the usual amount because I read that that would
generate more ammonia than normal. I then tested the tank the next day
(yesterday) and the ammonia was still at .25. Well, what do you think? I
am in dire need of a professional opinion. I want to buy some different
fish, but I want to be sure that I am not going to kill them by putting
them in too soon. Do you think it is safe or should I wait a little
longer? <Do wait... a few weeks more till the ammonia and nitrite
have been zero for a while. Please read here:
http://www.wetwebmedia.com/estbiofiltmar.htm and the FAQs links there>
Now that I got my main question out of the way, I have a few more that
aren't as important. The lady that runs the only pet shop around here
(only one within 220 miles) won't buy damsels back. So, I'm wondering if
it will be safe to add other fish to the damsels or if I should get rid
of some or all of the damsels first. <Depends on what species they
are, your desires> I would like to keep them if I could since they
cost me 6.95 each, but I will give them away if I have to (or maybe make
a quarantine tank and put them in there for a while?). I plan to add
some clowns and tangs or something. What do you think? <That you need
to think, study, develop a stocking plan... read through WetWebMedia.com
here> What fish would you recommend. I really like the maroon clown
because it looks awesome, but I understand that it is very aggressive
and would make it difficult to add smaller fish later. Is this correct?
Also, I read about the need to give new fish a freshwater bath before
adding them to a new tank. I do not have any other tanks, so I am
wondering how I should go about this. Is it okay to put sink water in a
pitcher and just add water conditioner to get rid of the chlorine? Will
it work to use this as a 10 minute freshwater bath or do I need
something more elaborate? <Acclimation protocols, others experiences
are detailed on WWM> Well, that is all I can think of for now. I did
not intend for my questions to be so long, sorry about that. Any advise
you can give me about my situations will be greatly appreciated.
Thanks in advance for your response and thank you for your wonderful
website! It has been a huge help! -Scott <And will be more so with
your help. Be chatting my friend. Bob Fenner> Power filters and
protein skimmers Bob, How are you doing? <Fine, you?> I
am new to marine aquariums. I have a 75 gal tank that I am setting up to
be a marine tank. I have 100 lbs of Live Rock, and 80 lbs of Live Sand.
I would like to use HOT filters and skimmers to keep the cost down. I
currently have a TetraTec PF500 power filter and a RedSea Prizm protein
skimmer. I wanted to know what you thought about these 2 products, if
you had reviewed them and how do these 2 products compare with similar
products? <Fine products. Very good for what they're designed for>
I had originally filled the tank and then added the uncured Fiji live
rock about 3 weeks ago. I then read that Tetra had a new power filter to
replace the Whisper 5 that I got with the tank, so I exchanged the
original filter with the TetraTec. I then tested the water and the
Nitrite and Nitrate readings were very high. So I did about a 80% water
change 2 days ago and installed both filters (TetraTec and Prizm).
<... eighty percent is way too much... better to do smaller changes...
wait off on all during your "run in period". Please read over the
set-up, establishing biological filtration sections on the marine index
on WetWebMedia.com here> I was going to wait about a week and test
the water again before I start putting fish or invertebrates into water.
<Mmm, wait about a week after your nitrites go to zero... or more to try
a hardy invertebrate> I read your book and thought it was wonderful.
Are there any monthly magazines that you would recommend so I can keep
up with the technology changes and other interesting news about marine
animals for my tank? <Yes... as a matter of fact all three of the
national monthlies: AFM, FAMA, TFH... their URLs et al. from there can
be found: http://www.wetwebmedia.com/links.htm in the middle top of our
links page. Bob Fenner> Thank you, Tom Schumacher Cycling
Question Greetings, I wanted to know about a cycling issue. I
put about 160lbs of Fiji rock into my 125 about 2 weeks ago. It was
curing at the LFS for I am not sure how long, maybe a week or two. I
have been running a protein skimmer for about 10 days and using
activated carbon. I never really was able to read ammonia, but about 5
days ago, the nitrites were around 5 and nitrates over 20. Two days ago,
the ammonia was still 0, the nitrites were around .1 and the nitrates
were around 15. Today the nitrites are at .01 (Salifert low level test)
and the Nitrates are at 2-5 (Salifert). I also have a DSB with about
100lbs of aragonite and 60lbs of live sand. It seems that the live rock
has cured as indicated by the low levels of nitrites. Question is when
should I begin adding inhabitants? <Give it a week just to be sure
your water quality is stable.> I was thinking of first adding a
cleanup crew, then a few Percs, then a few soft corals over the next
month or two. When would you suggest adding the snails, crabs, and other
inverts for the cleanup crew? <Go ahead and add them first to help
control algae.> How long after that would you add the Percs? <The
longer you wait the more copepods, amphipods, mysids, etc. you will have
scurrying around your tank. A month would be fine, but longer is better
for the diversity and population of infauna. Thanks! Adam <You are
welcome. -Steven Pro> Use of Ammo-lock and other Ammonia
detoxifiers Hello Mr. Fenner! <Howdy> It's been a while
since I've emailed you, but that is attributable to the fact that I use
your book, "The Conscientious Marine Aquarist" as my marine tank bible.
It answers the vast majority of my questions! However, I'm in the midst
of a debate that I'm having a hard time settling. <Perhaps there is
no such settlement to be had> Today I've got a question on someone
else's behalf regarding the use of Ammonia detoxifiers, such as
Ammo-lock. This person setup their 75 gallon aquarium and added fish
prior to cycling (I've had great success with fishless cycling on my
tanks). They were told by their LFS that the live rock and live sand
would not be sufficient to cycle the tank, and that they needed to add
fish. <Mmm, I do disagree... the LR, LS are fine on their own>
Well, they did, the ammonia spiked, the fish began dying, and the LFS
person told them to use Ammo-lock. They did this and, now, after seeing
a spike in Nitrites and a gradual rise in Nitrates, they're experiencing
a second, HEAVY ammonia spike. <To be expected... the product by
Aquarium Pharmaceuticals is fine for what it is intended for... but this
does NOT include forestalling the establishment of biological cycling>
Now, I understand that Ammo-lock is supposed to convert NH3 to NH4,
which is less toxic to fish, but that it should not prevent the
accumulation of Ammonia in the tank. <Actually... this product does
not do this> I also understand that it will skew test results.
<Can, yes, some types of tests> Personally, I've always been of the
opinion that, chemically speaking, less is more, and that water changes
should be used instead of chemicals, but I understand that others feel
differently. My advice to this person was to bring the remaining live
fish back to the LFS (no hospital tank setup) and continue cycling the
tank in a fishless manner. They told me that Ammo-Lock does NOTHING to
inhibit the cycling process. <Not so... the ammonia present is
chemically bound-up, hence the group of nitrifying bacteria populations
that "consume" such die off... and must need "re-grow" to convert newly
formed/forming ammonia to nitrite, supplying this to other
microorganisms that convert this in turn to nitrate... A simplistic
model, but if "A" is necessary for "X" to make "B", and "A" is made
unavailable then "Y" that relies on "X" dies off along with "X"...>
So, my question is -- do Ammonia detoxifiers inhibit the cycling of a
tank? <Most, by numbers of products, popularity... actually do
forestall the establishment of biological cycling> What EXACTLY is
their purpose and should they be used in situations such as these?
<Purpose? Let's see... mainly useful in dire "emergency" situations (too
much bio-load being added too quickly, loss of biological filtration
integrity in a compromised setting (e.g. treatment, quarantine tanks)...
NOT in systems that have yet to fully cycle> I've always been under
the impressions that nothing like this should be used while a tank has
been cycling (I prefer never to use these things, no matter what the
situation, but that's me). Any advice that you could give on this topic
would be greatly appreciated! <We are of the same impression, belief
set here.> Grateful as always! Deb Colella (A humble aquarist
who strives to be as adept at this hobby as you!) <You humble me my
friend. Bob Fenner, who apologizes for the delayed response. Have been
out of the country> Deborah Colella
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