They're from Wes. Feeding on everything. Sticks, wafers, anacharis, thawed frozen peas, broccoli, celery tops, cabbage, fruits (non-citrus), grape leaves, krill, plankton, gammarus shrimp, dandelion leaves, beet tops, turnip tops, earthworms, corn kernals, beans, etc. There's always a veggie clip needing refilling with these guys. They'll graze all day given the chance.