OpalineAqua
Fish Fanatic
My danio's eye is very swollen and I bought a mediction for popeye that didn't work. I tested my water and ammonia and nitrite and everything was 0. Then I noticed that his stomach was very swollen and just the other night I noticed that my usually very active danio was moving sluggishly at the surface. Plus the eye started turning black and his stomach is still very swollen. Please help and tell me if this is something more serios and how to treat it and what could have caused it!

