Its in with another pink tailed,2 balas,2 s dollars,1 pictus cat,2 gouramis 2 albino sharks,thats it and i have the tank against a wall away from the door and window,...this is the only fish that i moved out off the lido 200,and it had never did it in the other tank and its all the same tank mates that hes in with nothing ever bothers with them.