
to TFF
Could you please tell us a little more about the tank the affected fish is in?
What fish are in the tank (species and numbers of each)?
What are your water test results like for Ammonia, NitrIte, NitrAte, pH and temperature? If possible, can you post numerical result and the test kit you are using?
How old is the tank?
Is it just this fish showing these symptoms?
How long have you had the affected fish?
Any Flicking, Rubbing or excess slime?
It sounds ATM like stress to me. the cause we can't really say, without more information. This said, there also isn't enough information yet to say it is stress for definite
All the best
Rabbut
In the tank is 4 discus and 2 angel fish
test results are fine
the tank is 2 years old
the discus in question was put in anothere tank 30 litres with another discus that had paired off with him, but the female laid 2 lots of eggs and wouldnt let the male fertilize them and she ate them. We deceided 2 put the discus back to their original tank as the discus in question started to swim face down and didnt look happy to us at all. We have had the affected fish for 3 months and there is no flickering, rubbing or excess slime. The discus is quite lively and eating and chasing the smaller fish as normal, but just swimming face down.