I recently Setup my tank. Went to the store bought a small Peacock eel, what looks like to be a Pictus cat and a Rainbow Shark. My questions are, The Eel only seems to eat if i feed him Betta food. Is that normal? When I bought the eel he was in a tank with FW puffer fish and I think they might have eatin the tips of his tail off, will that grow back? I wanted to upgrade to a bigger tank soon, would you guys recomend the Eclipse 12ga or a 29ga from walmart? or possible doing two 10ga tanks with a massive water bridge....