I have a 50 gallon with 2 crowned pearlscales, 2 dojo's and 2 peppered cories. 1 Pearlscale seems to consistently afflicted by swim bladder problems. He is good for a few weeks, then he's either constipated on the bottom of the tank or as of late, floating upside down at the top. I usually epsom salt bath him and spike some peas with epsom salt and he's usually better within a few days. Now, I've tried feeding him flakes, soaked flakes, hikari lionhead, hikari lionhead sinking soaked for 10 minutes, feeding him every other day, and other than peas, he won't touch other veggies. I suspect he's engorging himself on the brown algae I have growing on rocks. I know pearlies are more likely to suffer from swim bladder diseases but its driving me nuts, what else can I feed him that is less likely to affect him? the other goldfish is fine and the currect parameters are:
Temp - 72
Ammonia - 0
Nitrite - 0
Nitrate - 5
Temp - 72
Ammonia - 0
Nitrite - 0
Nitrate - 5