Bumping this oldass thread because my chuatsi has been having some issues and I've been searching for some advice or help.I kinda figured things out along the way so I thought I'd share....A few months back I noticed my chuatsi started shedding patches of skin which I initially attributed to dissolved solids build up in the water so I would do a large water change and after which the fish would be fine,it's skin would clear up within minutes....but then a few days later,less than a week's time the shedding was back and the fish looked to be near death.The growout tank was heated and shared with a small datnoid and there was no way the two of them was fouling up the water so badly so I decided to remove and acclimate the chuatsi to it's own unheated tank.
It has been about two weeks now since I've had it in a coldwater tank,temp is in the mid fifties and there has been no skin shedding or any other noticeable problems and no change to the fish's appetite.Interestingly I have had this fish for about a year and it had been in a heated tank since I received it.I was already aware that Chinese perch are a subtropical species but all accounts I've read from other keepers had them in warm water.I have kept them before and they were in warm tanks with no issues but this one has seemed to have developed an intolerance for warm water at some point.