Four of my five atfs are shoaling nicely. One of my atfs (a gatf) is not hanging out with the rest of the fishes. Is this common? perhaps he is sick? the others do not bother him when he moves with the group so i think he just chooses to be alone for some reason. he sits on the opposite end of the tank near the bottom and he barely moves around. he eats a little bit. he is the littlest gatf.


