I just got this cute little guy then I’m gonna call Frank and I’m not sure what to feed him, I welcome all advice I have a 50 gallon tank that he shares with 10 little freshwater tropical fish to snails in a sack fish. He seems pretty vibrant I almost want to get him a lily pad because it seems like his journey to the top of the tank is long and tedious, Frank looks a little winded. any suggestions on diet. Thank you for your help