My small goldfish has suddenly become ill. I noticed he(she?) was hiding from the others and would not come up to eat. When approached he swims off balance.
The problem seems to have gotten worse, now he is curved and floating near the bottom of the tank on his side. He's still breathing but looks like he's in a lot of pain.
Didn't detect any ammonia or nitrites, although the pH was high 7.4. Any advice would be appreciated. I plan on giving him some peas, but the prognosis doesn't look good. Thanks