I've got a 28g biocube with 2 clowns, a dzn hermits, 5 of the snails that burrow in the sane and have tube that stick up, 3 peppermints and 3 emerald crabs. I've been feeding once a day and feed about 1/4 of the frozen cube. On another thread someone suggested the hermits may be either eating my polyps or scavenging around them and pulling them loose from the rocks. What's the proper amount that I should be feeding? I usually leave the pumps off for about 20 min or so to make sure they have enough time to find anything laying on the sand.