Yes, the star is the shrimps' food. I actually got a pair of the harlequin shrimp since I read that they do better in pair. People suggested that I freeze the star and feed a leg every 2-3 weeks but I just didnt have the heart to freeze it alive. So I'm putting it inside my ruge/sump and maybe cut a leg evey 2-3 weeks to feed the shrimps. This way the star stays alive for regeneration of the legs. I might get a couple more stars to rotate the legs to give it more time to regenerate. I know it's bad....
As many of you know, I posted up those pesky tiny tiny stars that I have in my tank and I wanted to get rid of them. Well, the pair of harlequin wiped them all out in about 3 nights. Now I only see one or two of those tiny stars occasionally. I'm afraid the shrimps are going to starve and die. So I better feed it their real food. I dont thnk it is that expensive to keep these very cool shrimps. It just wrong that you have to cut other critter legs to feed it...