It may already be too late to do anything about this but this morning I found one male sunshine peacock at the bottom of the tank, pale and wedged behind an air stone. Thought him to be gone but when I went to remove him he moved a bit. I immediately moved him to a hospital tank. He stays on the bottom, upside down. I added some meta fix. I would guess it to be the result of overnight aggression as there is one other male and a female in a 40 breeder. I know that this was not ideal but both of the same males were in my 210 with another male....none of this is recommended, I know but was a start to getting my mix in better shape. Up until today I saw no signs of aggression other than he colored way down. Since the three peacocks were moved into the 40 have I seen them feed or poop. They pretty much hide. So I don't think he has much chance to come back, but is any last chance treatments you would suggest?