Who, the pleco? I feed him everyother day with one algae wafer. If I go any longer than that he seems to prey on the black tetras like chasing them or he goes nuts and flys all over the tank never seeming to stop moving and he climbs onto the output of the filter looking for food. I know this because it happened this past saturday when I skipped a day on feeding him because I got new fish and I like to feed him with the light on so the other fish won't get at it.