I have a mandarin goby, dogface puffer, porcupine puffer, orange file fish , lion fish, couple peppermint shrimp, horseshoe crab, and a couple emerald crabs...and i feed them usually once a day usually frozen brine for all but lion and porcupine they get guppies and an occasional goldfish but aren't in the tank more than 10 seconds haha them 2 are animals wen it comes feeding time!