Unhealthy catfish!

[exeori]

I have 2 Cory's in my 75l tank, both are very slow moving, they are hiding beneath plants and sort of floating against them. When I move the plant they swim away and start again in a different spot. Is this a sign of disease? I checked my water and everything reading 0 with a ph of 7.

 

[Keke89]

Aarrgg!! I had the exsact same thing happen to me... They were sluggish and then I noticed clamped fins. One of mine died, however clean water conditions really helped with the other one. I did regular water changes. What was the results of your ammonia?

 

[exeori]

Ammonia level is also 0. 2 more have died since this morning and I have no idea what's wrong! All seem to be struggling to swim, they are floating instead. I added a fish yesterday and I'm thinking that it's brought a disease into the tank.

 

[Coursair]

That seems too fast to be disease ??



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[HN1]

How long has the tank been setup? Everything shouldn't read zero. How are you testing? Liquid, strip, LFS? I agree that it seems too fast for a disease.

 

[calebmc]

Corys are a schooling fish and they would need an group of at least 4 but, they would prefer a group of 6 or more.

 

[exeori]

Nitrates are reading 5. I would prefer more but couldn't really fit anymore in

 

[exeori]

and I'm testing with a chemical kit. Tank has been running with no problems for 3-4 month

 

[HN1]

Hmmmmm.... what fish did you add yesterday? What type of cories and what temp is your tank at? When in doubt, do a large PWC but that's really all I can advise.