I have 2 baby peacock bass they are 3 inches. One is just not eating the other cant swim using his tail and barely moves as he sits on the bottom also not eating he looks emaciated and can't even swim out of my hand. I brought them raised on pellets I have tried feeding them everything for live baby guppies (that I breed and medicated) to mysis shrimp and the very same pellets they were fed on in shop. They do not move at all. The ph is 7.5( same as the shop) ammonia 0 nitrate 0 nitrite 0 temp 25. 400l tank in a 2000l system they are the only fish so far flow rate through the tank is steady. The darker one can barely stay upright. Also dont know exactly what type of peacock they are i know they are probably to young to tell but any ideas im happy to hear them. Pls help

