Is this normal for a fish to have the tail fish thinning in the middle and losing scales and having black on the tips of its tail fins and it's a goldfish with another goldfish but is bigger then the other goldfish he swims fine and I have completely cleaned the tank and the water is filtered he acts fine just doesn't look fine
Responses (1)
on the in side of the tank sometimes theres bacteria on theses there are things you can put in the water to it ends up on the fish watch it good cause things can happen help kill the bacteria sometimes the bacteria can cause the fish tank to get this on it watch the fish closely for a few days call a pet store talk to them