Thank you for all the quick replys. They are about 2-2 1/2 inches in diameter. They have a 8" tig tank mate. But he is new as well they are all about 6 days new to the tank. The tig is straight rejetting my food for now. When I feed I turn my filters way down so they aren't getting sucked up. Also they are both females if that matters. My water is 7ph 0ammonia 0nitrite 40ish nitrate. My nitrate is alittle high but I don't want to do to big of a water change to stress the fish out since they are new. I'll do a 20% change today thou. And so cut earthworms very small and just drop them in? And lastly for filtration I have a xp4, fluval 405, and 2 fluval 305's on a 75gallon. Yes tank is slightly small for now. I will be moved out of my parents house next spring and WILL have a 300 gallon.