so ive been waiting for a month and a half for gold nuggets to come in at a lfs. over that time ive gotten a little algae on my big rocks and driftwood. ive been wantin to clean it but i figured it would give the pleco something to do and a nice little snack while he waits for the good meals. next week i should be getting it ( he said a 4" gold nugget for $26-28, i think its a good deal) so i wanna make sure its gonna eat it the algae? obviously it wont be clean over nite but are they good cleaners?