When they're small they hide very well, only feed at night. Frozen Mysis shrimp and brine shrimp fortified with algae are eagerly inhaled as well as pieces of raw shrimp. Bare bottom quarantine tank makes for easy clean up, temperature 78-80F. Provide a few caves so they get comfortable. Should eat like little machines soon, mine were barely 1.5" and one became more dominant and is .5" bigger than the other now pushing 5". Never would touched zucchini.