ummm i dont really know that much about bottom feeders.....but i was wondering are there any bootomfeeders that kinda clean up all the stuff on the bottom of the tank like food that drops or even poop???? like i said i dont know anything about bottom feeders....i have 1 el bino pleco in my 55 and he is about 3 inches long.....and i was just wonderin what else would be good to put in there to kind help ummm clean up???