In my aquarium there is sometimes a large amount of food that collects on the bottom forcing me to siphon most of it out.... so i was wondering what a good bottom feeder would be for my Oscar and Jack Dempsey grow out tank. Also i hope that i can stay away from a pleco because the future tank for my oscar and jack dempsey already has a large plec in it and their grow out tank is only a 32 gal.