My ACF recently ate...or tried to eat my loach. I found the loach half out of his mouth and managed to save him. Now I'm forced to move him(which i was going to do when he got bigger) to another tank. I know I don't need to airate the water, but I do have the haeter in making it comfortable for him. My question is...filter? Is it necessary? The water is getting cloudy, what do i do?