you shouldn't have all your readings at 0... but anyway chances are that he's just chillin... all of my big cats cruise their tanks though... and I've never had the "bump on a log" cats...JLad10687;1783512; said:Ammonia, nitrates, and nitrites are all 0. He still is just a bump on a rock to me at this point. Could it be that hes scared of the other fish? He was breathing hard on Saturday but then returned to normal Sunday and today. He has not once come up for food, just eats off the bottom.