So I finally, FINALLY, got my castiel moved into the 37 gallon tank. It also has 4 adult swordtails in it, and some babies...which of course showed up on the morning I was moving him. He has definitely tried to eat some babies, idk if he has succeeded or not. Probably has. Anyway, he does this thing where if a sword gets too close, he turns almost completely horizontal and darts at them. He doesn't continue to chase them. And as far as I can tell no one has been injured. Is this normal? He has been alone for almost 3 years until now. So he probably doesn't like sharing his space. But I find the swimming horizontal very odd, and wonder if that is normal?