One of mine was digging in the gravel the other day, and he was literally picking up one bit in his mouth, then carefully placing it to the side, then going back to repeat. I sat there watching him do this for about 10 mins!!!!
Absolutely brilliant fish. They do take a while to come out of their shells though. for the first 2 months, mine hid and wouldn't come out for anything (it had me quite worried actually). Now they will literally come and eat the bloodworm from my hand when I put it in the tank!!!!!