I buy the fish on wednesday and feed him 4. The rest go into my feeder fish biocube for the week. On Friday I'll feed him 2, Sunday 2 then on Monday and/or Tuesday I'll throw one in. I don't have a schedule really, I but 10 fish a week and so far this seems good but I'm just figuring it out. I'm sure he'd eat 4 a day if I let him but I don't want to deal with that much poop...