The regular Betta Bio Gold are tiny but they do make baby ones which look almost powdered. Our don't have any trouble with the regular ones. One gulp and they're gone. That "feed what they can eat in 2 - 3 minutes thing don't work for ours. I give them 3 twice a day. They take them off my finger so they are gone immediately. I think they could eat an entire pack in 3 minutes.