ln53
Aquarium Advice Newbie
I have had a goldfish for almost a year now. Up until 2 days ago, looked and acted fine. 2 days ago, started swimming/floating on it's side and upside down. Just appeared disoriented and sick or something. I put it in a gallon bucket of fresh water. It floated on it's side at the bottom for a while, then perked up. I put it back in the tank that night. Next day, back to same old thing. Looked dead at first when I saw it in the morning. Put it back in container with fresh water. Got better again. So I changed out the whole tank and rinsed décor and rocks. Changed the filter. Refilled and put him in it. This was a few hours ago, and seems good as new. ALMOST. Got a good look at it. One of it's eyes are completely black. I don't know if it's dilated, or this is how it looks in back of the eye, and he actually lost it? Any ideas of what this may be and what to do about it?