I just remembered something. Last week I was sick, and needed to thaw more frozen food. Out of laziness, I dropped a frozen cube in my tank. I think I did this 2 or 3 days in a row. I’m not sure if that would do anything, I know it’s way more food than I normally feed. I have a small tank and only had 4 fish.
This morning, the Bengaii Cardinal is looking really bad. He’s just floating around, sometimes swims upside down, or bounces along in the current bumping into things. I have no idea what just changed or happened. The two clowns seem just fine.
This is really frustrating, frankly I’m reconsidering the hobby right now. It’s hard to know what to do for this fish when they aren’t well.
Any ideas on the Cardinal, or should I be prepared to euthanize?
Since my clowns seem fine, do I still need to worry about something greater going on in the tank?