Would it hurt if the tank was warmer than it should be? I think the average temp for my piranha should be around 80 degrees but would it hurt if it was even a little higher?
****A$$ Pinches & SOur graPes****
Higher temperatures can cause neural damage in the fish, this is because the myelin sheathing becomes more soluble and the O2 partial pressure drops so not as much O2 dissolves in the water which can cause oxygen depravation. 82 should be fine, but the closer you keep yourself to that edge the easier your heater can go insane and kill all your fish.