You can feed them uncooked table shrimp, silverside, krill. Anything meaty basically. I feed my LTA, RBTA, and mini carpet nem every week or twice a week. I feed them the size of their mouth so my LTA I feed it 1/2" piece of meat, the RTBA about a 1/4" piece and the mini carpet just smaller then 1/4" piece. A lot of people will tell you to stay away from silversides since they have horror stories of how a silverside killed their nem but I've havent had an issue with it.