I have two angle fish. They were really tiny when I got them. One has grown double in size in just a couple of weeks. The other has barely grown at all. He dosen't have the giant appitite that the big one has, he eats, but not alot. Now the big one is starting to chase him away causing him to eat even less. Should I separate them and encourage the little one to eat and grow and then put him back or should I take one back to the store, if so which one? some one once told me to always get rid of the more aggressisive one but I kind of like them both. Should I just leave them together? Or maybe I have to set up a whole other tank!