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FAQs on Guppy Diseases: Diagnosis  

FAQs on Guppy Disease:
Guppy Disease 1, Guppy Disease 2, Guppy Disease 3, Guppy Disease 4, Guppy Disease 5, Guppy Disease 6, Guppy Disease ,
FAQs on Guppy Disease by Category: Environmental, Nutritional (e.g. HLLE), Social, Infectious (Virus, Bacterial, Fungal), Parasitic (Ich, Velvet...), Genetic, Treatments,

Related Articles: Guppies, Poeciliids: Guppies, Platies, Swordtails, Mollies by Neale Monks, Livebearing Fishes by Bob Fenner,

Related FAQs: Guppies 1, Guppies 2, Guppy Identification, Guppy Behavior, Guppy Compatibility, Guppy Selection, Guppy Systems, Guppy Feeding, Guppy Reproduction, Livebearers, Platies, Swordtails, Mollies,

If you look at my guppy you will see that their is something white coming out of its butt.   7/6/16
<Ah, the "texting" generation, bless them! Outgrown pleasantries and politeness -- no need to say hello, please or thank-you; straight to the point!>
What is it?
<Likely an anal prolapse rather than a parasite. Do read WWM regarding these; a combination of Epsom salt, fibre-rich diet, and appropriate antibacterial medications can/should help. Cheers, Neale.>
More texting    7/6/16

Sorry that I got straight into it haha I was really worried that it was a parasite
<It's not. Some good examples here...
Epsom salt, fresh greens, and ideally some antibacterials will do the trick. Cheers, Neale.>

See-through and swollen abdomen      5/28/15
Hi there guys,
I have a fish tanks that have both male and female guppies. I have double the amount of females to males so that there is no fighting and to try give the females a rest.
They have fry but I give what survives away. Yesterday I noticed that one of my females abdomen's is blown up hugely. It is almost like someone has pumped her up with a bicycle pump, it is also completely see through.
<Sadly rather common. Difficult to pin down. Can be constipation (in which case Epsom salt helps) but can also be infection (treat as per Dropsy, again Epsom salt, ideally with an antibiotic) or, most seriously of all, dead/decaying fetuses (no real cure, and would euthanise such fish as they'll die anyway). This last condition is sometimes associated with protrusions from the vent. Do see my pictures of a (dead) female Halfbeak on this page:
While not a poeciliid livebearer like your Guppies, the basics are the same.>
This means I can literally see the other side of the tank through her poor body. My first thought was that it might be bloat/swimmers balder but she doesn't seem to be having any trouble with swimming.
<Do try the Epsom salt treatment as a "first pass"; do read:
...towards the end of the article; and also:
Dropsy is sometimes treatable, but not always.>
She neither sinks nor floats nor looks like she is struggling at all. She is also not off her food and still seems to poop with no problem. I have been keeping a close eye on her. I also watched to see how the other Guppies are treating her in the tank and they don't seem to be picking on her or treating her any differently. If it was not for the bloated see through body I would think she was totally normal. Any help you could give me I would be most grateful! Thanks in advance.
<Most welcome.>
Hannah (A huge fan)
<Yay! Neale.>

Bloated guppy           5/12/15
Hi again!! How are you?
<Fine Ms. C; thank you>
One of my male guppies has a very enlarged tummy. He feels in good form, eating, swimming etc. but is quite big. I think it's dropsy as I have been busy and have not changed the water tank in like 6 weeks. I also have far too many fish (being trying to give them away) 10 gallon tank - 9 guppies I took him away on a 2.5 gallon tank, put about 3/4 teaspoon of Epsom salt and same amount of salt.
I changed 50% of water on main tank and added regular salt to it. I think one other fish may have it but his tummy is not crazy big so it may not be.
Is there anything else I should do? I have some tablets for fungus and bacteria - should I use that?
<I would continue with the Epsom salt treatments, replacing as you change water (I'd use the water from your ten gallon for change outs); and not treat either system as yet (more potential trouble than it's worth)>
Thanks a lot!!!
<Welcome. Bob Fenner>
Re: Bloated guppy      5/13/15

Thanks! how often do I change the water on the isolation tank?
<I'd likely do (from the main tank) every two-three days>
and how much Epsom salt and aquarium salt shall I put?
<About a level teaspoon for the 2.5 gallons>
Should I replace the water I take from the main tank with new water plus salt or just new water?
<The latter; just new water. Bob Fenner>
Re: Bloated guppy      5/13/15

Thanks! Fish still alive - eating well too
<Ah, good. B>
Re: Bloated guppy      5/13/15

So I change the whole water for the isolation tank?
<I'd only change half at most>

Re: Bloated guppy       5/19/15
<Hello there>
The fish is still alive, eating well, moving well but still balloney :) I have done the water changes with Epsom salts twice - how long until he goes back to normal ?
<Mmm; could be days, weeks; perhaps forever. The bloating may be due to something incurable. I'd keep on doing what you're doing. Bob Fenner>

Re: Bloated guppy        5/20/15
Thanks Bob. I will keep giving him eps salt baths - at what point in time will be safe to put him back on the main tank!
<Is safe anytime. B>

Guppies Keep Dying Not Sure Why        11/11/14
I have a 28 gallon tank. The gph of the filter is about 350.
<350/28 is 12.5, so a turnover rate of 12.5. Even allowing for the filter being a bit clogged, this is a very high turnover rate. Good for loaches and catfish, but too much for Guppies.>
The water ph is 8. The ammonia, nitrates, nitrites appear to be fine.
<Values would help. To recap: ammonia and nitrite must be zero. Nitrate should be low, under 40 mg/l.>
The tank contains 3 female guppies, 5 neon tetras, 3 ghost shrimp, and numerous tiny bladder snails. I clean the tank once a week. Is this enough?
I cleaned the filters a few days ago. This did not seem to help. The problem is, the guppies sit at the bottom of the tank, appear slightly bloated, then start swimming again, and then they die. What do you think the problem could be? Do you think it could be guppy disease?
<Have written about "Guppy Disease" (strictly, Tetrahymena) elsewhere:
But to stress the key point: Guppies are inbred and genetically weak, and the quality of farmed specimens is low. It's essential to choose healthy specimens, to keep them in optimal conditions (hard water for example,
which Neons won't tolerate for long) and ideally with some salt added (not essential, but helps greatly). Tetrahymena has similar symptoms to other diseases especially Mycobacteria infection, so keep an open mind. In both cases cure is largely impossible, but prevention (careful selection followed by optimal conditions) should prevent problems.>
Thank you.
<Most welcome. Neale.>
Re: Guppies Keep Dying Not Sure Why     11/11/14

Thank you Neal! :)
<Most welcome. Neale.>

Strange white spots/cotton mouth? on my Platys and Betta; plus  broken link
> I tried looking at the article mentioned on
> http://www.wetwebmedia.com/before/index.htm  
> 'The vast majority of times fish get sick, the disease involved is
> whitespot, velvet, finrot, fungus, or the shimmies. Use this article to
> establish which disease is causing your problems, and then select the
> appropriate treatment.'
> Unfortuantely when I click on 'this article' I get a 404, same with
> 'select' so hopefully this email wont be too out of place.
> <Thank you for this. Will take a look/see>
> A quick history, I'm new to aquarium keeping, and had thought things were
> pretty settled out when I went out and purchased some additional fish and
> plants for my 50G/200L tank. The day after putting the plants in (rinsed
> in RO water, but guess not good enough) I found all of my shrimp upside
> down on the bottom of the tank, some floundering around.
> <? What from the plants themselves would cause this?>
> I panic'd and added too much Tetra Aqua Safe (Water/metal treatment) which
> allowed a few of the shrimp to recover, but then caused havoc with the
> fish. I did man water changes over a week and also upgraded the HOB filter
> that came with the tank to an Eheim Ecco pro canister. After a week of
> trouble things appeared to be as good as ever with happy fish swimming
> around. During the challenging time I lost one of the new platys and one
> of the new guppies I had bought for the tank.
> <Mmm; how long has this tank been set up? Best to let all run a week or
> more before introducing any life... then allow the system to become
> established in terms of cycling.... before stocking more>
> A week passes and yesterday I look at my tank and find my betta with a
> funny gray/white chin/mottled blue face instead of the black it has been.
> The other new platy I bought a few weeks ago has a funny white fuzzy stuff
> on his mouth, and now I'm anxious it might be Columnaris that will wipe out
> my tank.
> <May be... but...>
> I've isolated the platy and betta to another smaller tank but now in
> looking closer at my other fish I am seeing little white spots that almost
> look like paint on some, and I *think* maybe holes or skin damage on the
> other platys. Unfortunately Im too new to this to really know if what Im
> looking is normal fish anatomy or something going horribly awry.
> <Just stress... from the system being new, water quality issues>
> Here's a 2 second video of the platy with the funny mouth
> https://www.youtube.com/watch?v=pfQ56mRgdzY (I couldnt get a photo
> unfortunately)
> Here's a few photos of the platy, betta and guppies. Would love if you
> could tell me if I'm hallucinating or if everything is ok? I keep reading
> about a specific antibiotic Kanamycin but have no idea how I can get it
> here in the UK ?
> <Am going to ask Neale; who lives in Britain... for better input here>
> Anyway, thank you very much for any insight you can provide!
> -Crh
> <I encourage patience, and no medicine introduction at this juncture. Your
> fish's troubles are not likely pathogenic, but environmental. Treating may
> well make matters worse. Perhaps a good general freshwater book to read for
> now.
> Bob Fenner>
Re: Strange white spots/cotton mouth? on my Platys and Betta

<<Bob’s covered the basics, but some thoughts. Excess mucous production and/or poor mechanical filtration (i.e., removal of silt rather than ammonia) can cause fish to appear speckled out cloudy even though they’re not sick. Replacing the mechanical filter media, checking for an irritant (such as copper or incorrect/sudden changes in pH), and the use of flocculants (sometimes called filter aids) can help. A series of large water changes is usually helpful where there are large quantities of silt, together with stirring/cleaning the substrate. Second though is the use of salt to stress freshwater parasites. While not an option for the Betta, you can easily up the salinity to one-quarter seawater and cause livebearers such as Platies and Guppies no harm at all. This will severely stress most ectoparasites (velvet, ick, even Costia) and to some degree can even help with bacterial infections (particularly where these are opportunistic). Mouth Fungus (the bacterial infection Columnaris) is always a possibility, though it is relatively easy to treat as per Finrot if caught early. Antibiotics such as Kanamycin cannot be legally obtained in the UK (or indeed most Western countries outside the US, and even in the US the free-for-all on antibiotics isn’t likely to persist for much longer; do see the issues with antibiotic resistance). However, you can obtain them from vets, typically for around £10-15, which is about 2-3 times the cost of generic aquarium treatments here. With that said, a product called eSHa 2000 is generally excellent against bacterial infections, much better than the other antibacterials I’ve used here (the Interpet one for example I’ve never had any success with). eSHa 2000 costs about £4-5 a pot and is very economical to use. It, and eSHa EXIT for external parasites, are the only two medications on sale in the UK that I use or recommend. Cheers, Neale.>>
Re: Strange white spots/cotton mouth? on my Platys and Betta

<<The Platy in the video looks like he’s damaged his mouth, got some dead skin there, but isn’t otherwise in trouble. If he can feed okay and is swimming about, I’d not worry overmuch. I’d look out for opportunistic infections, such as fungal infections, but good water quality (hard, alkaline chemistry too) should be all he needs. Low-end brackish conditions tend to minimise fungal infections, so if he’s in an all-livebearer tank, 3-6 gram/litre salinity could help. eSHa products widely sold; your local Maidenhead Aquatics for example should stock and be open Sunday. Cheers, Neale>>
Re: Strange white spots/cotton mouth? on my Platys and Betta

From the plants I believe it was pesticides used to keep snails/etc.. off them.
The tank has been setup for 6 weeks ish, ammonia is 0, nitrite is 0, nitrate is about 5-10.
Changing roughly 25% water once or twice a week and using (now) seachem prime to condition.
Could you see anything from the photo's or video that looked odd? Thanks!
<Not really; no. BobF>

More than full size

Re: Strange white spots/cotton mouth? on my Platys and Betta      10/25/14
Thanks Bob, much appreciated! Many thanks to you and the crew for helping the rest of us to navigate these new waters, especially when worried about these new friends it makes a world of difference!
<Am very glad for this. Cheers, BobF>

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