What type anemone? Pics? Small pieces (say the size of a peanut) of silversides, shrimp, squid, scallop, etc. would likely make for good choices. Brine shrimp isn't a good choice, btw. You can go to the seafood dept. of the grocery store and get unfrozen fresh shrimp, scallops, and squid. Also get silversides from your lfs.