I have 3 rosy barbs :1 male, 2 females (I am pretty sure), and 5 black widow tetras. I think one of the female barbs are pregnant because the other one does not have a large stomach. This is my first post on this website. Yes I am waiting for stores to restock on rosy barbs so I can buy more. She is hiding in a dark cave area and won't come out for a picture and also doesn't come up to the surface for food.. Should I move her to an extra tank or anything?