Well, I threw 8 Ghost shrimp in about 2 days ago, and now they are all gone. I'm really happy he ate them, he's getting the idea for hunting live food. I loved watching him try and flank the shrimp. At first he was a little curious, he thought he could just go in and get them, but he found out that he had to work hard for them. However, I'm a little concerned, but I didn't want to put it in the emergencies. It looks like cosmo's belly is a TINY bit black, right near his yellow top. I will post some pics shortly, but is this something to worry about? He doesn't appear to be sick...