Red Mouth And Arched Back

Pawl

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Tank size: 20 gal.
pH: 7.1-7.2
ammonia: 0 ppm
nitrite: .1 ppm
nitrate: Below 20, I use distilled water with weekly 10% water changes
kH: a week ago they said it was just a little high, but nothing to worry about
gH: I'm not sure what this is.
tank temp: usually around 80 but it can fluctuate about 2 degrees over a day

2 Adolfoi Corydoras
4 Neon Tetras
2 sick White Clouds


My two white cloud minnows are less active than usual and are starting to eat much less or not at all, one is very pale and they are closer to the bottom of the tank than usual. Both of their mouths are blood red for some reason, and one has had an increasingly arched back. It doesn't seem to be very significant but occasionally they will gasp.

I change about 10% of my 20 gallon tank every week, and sometimes a little bit more depending on how dirty my gravel is.

Recently I have used Algae Destroyer, a bit of antibacterial (melafix) from another sick danio about a week ago who had raised scales and the day i noticed and i got the melafix but he died two days after i started dosing. I just added some salt to the tank but less than the recommended dose because of the corydoras, who i hear do not like it. I also added some Stresszyme to help my biowheel.

I feed my fish with tetracolor flakes and some pretty cheap fine pellets with ingredients listed as crude protein 50% Crude Fat 15% Crude Fiber 2% and 1.26% phosphorus but usually only my corydoras eat these, every 2 days I'll feed them all frozen brine shrimp.

My filter is a marineland penguin biowheel for a 30 gallon tank that filters about 150 gph so its a bit over filtered, and their brand of filter media that includes about 2 tablespoons of activated carbon.

I added a new (quite large plant) that grew from a bulb, and I added 5 neon tetras but 1 died mysteriously. I acclimated them using suggested methods. My tank has been running for about 2 months. Recently I had to remove a plant that had what looked like beard algae, and my danio swelled up like a pinecone and i bought some melafix but he still died 2 days later. My substrate is white rocks that are not extremely smooth but have no sharp edges that i bought from Petco. I live in the USA.
 
Your nitrite should read as 0, so that could be a factor. A reading of 1 is quite high and could cause your fish to be lethargic.
I should do another water change of about 30-40% to try and bring the nitrite down. You might have to do a daily water change until it drops to 0.
Hang around and somebody may have another suggestion but I'd definitely change the water as soon as possible. :)
 
Immediate water change like stang1 has said the tank is still cycling thats why the are gasping.
Increase aeration in the tank.
Add two teaspoons of salt in a jug of tank water stir till it disolves and add to the tank.
Don't like the sound of the bent spine pointing towards fish tb, can you issolate the fish even if its in a container at the top of the tank.
How long has the tank been set up and you shouldn't be touching the gravel till ammonia and nitrite are 0.

http://www.4qd.org/Aqua/disease/tb.html

Tanks still cycling then if its been set up two months and ammonia and nitrite are not 0.
Don't touch the gravel till the tank has cycled.
Classic mistake of adding to many fish to soon, neon tetra and corys are very sensitive to water quality.
Well its beginning to look like fish tb, bent spine, sores, and dropsy.

http://www.aquarticles.com/articles/manage...fer_FishTB.html
 
This is a bit scary because I've started a siphon with my mouth, but not while the symptoms have been bad or even visible. So I have a chance of contracting tuberculosis?
 
It's very rare, but never use your mouth to start the vac off.
I'm not a doctor usually through cuts and wounds is the way to catch it and it very rare anyway.
 
Fish tb is rare, ang you usually need repeated contact with an open wound for it to transfer to humans. It's a skin ailment, unlike the tb you are accustomed to in humans, which affects the lungs.

I would go with the daily water change suggestion to keep the nitrites down. I also have a question: any particular reason you are using distilled water? It contains no carbonate hardness, which prevents pH swings. A cycling tank often has pH swings with tap water, distilled water will only increae the magnatude of these swings. If your tap water is that bad you need to mix something in the distilled water to increase the hardness in order to prevent this.
 
So if one of my fish has fish TB its already spread to all the others? Otherwise I could isolate the with the one with increasingly curved spine, because he is starting to have trouble swimming.

Also about increasing aeration, I chose not to get a air pump because I think the hang on filter trickling into the water gives me enough oxygen exchange. So there is no way i can increase it, unless you it is important enough to go buy a air pump.
 
If you have a hob filter you could increase aeration by dropping the water level a little. I would isolate the sick fish & treat with Maracyn & Maracyn II, as the danio pinecombing indicated an internal bacterial infection. Seeing as the tank has nitrites due to cycling this will stress the fish, letting an opportunistic bacteria take hold.
 
Its been a few days and my fish are much more active after those 25% water changes and my water quality is awesome! I started mixing some tap water in with the distilled because my city's water is below average, and of course i'm using dechlorinator called stresscoat. The fish that apparently has fish TB is more active but the spine problem is still present. I'm sure that when I got him he did not have this problem. I don't have a hospital tank and I'm not sure where you're going with the container idea.
 
Need to issolate him, well to be honest even end his suffering.
You stand a chance at the moment with an antibiotic but it will wipe the bacteria colony out in your filter.
Don't want the fish in the tank pecking at the dead body of the fish with tb.
 

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