My leopard bush is looking really bad, he lying on his side still breathing but just not moving at all. He'll have the energy to swim around every once in a while but then he just sinks to the bottom and lays there. The water parameters are fine almost all at 0 the other fish in the tank are doing fine as well. He doesn't have any outward signs of disease or anything other than being paler than normal, which I assume is the stress. I have added salt to the tank and increased the temp to about 89. If you have any idea on what to do please let me know.