Ok I have a brittle star and he's a little terrorist. I bought a sand starfish and the other day I fed my brittle star and while I was watching him he ran over there and attacked the sand star. The next day my sand star had 3 legs left. WTH!!! I don't have another tank to put the brittle star in. I've probably had the tank for almost a year now. He just recently started eating everything. And it's been about a month now, but I used to have about 4 baby brittles in there. Haven't saw them in awhile. Now I have about 3-5 hermit crabs left. I don't know what to do. He's about the only thing that's survived and I don't know if it's something I'm doing wrong or if it's him. I don't want to get rid of him incase that's all I can keep. And he's kinda sentimental I guess.You know, one of my babies. If anyone knows of a type of fish I can put in with him, it would really help. BTW it's a 30 gal. Tanks :)