Right now I've got 3 Orinocensis pbass in a 75gal tank and I'd like to try and add some other fish as one of my bass is quite dominant to the other two and I'd like to try and break that up a little bit. I've got standard Home Depot pea gravel for a substrate. I was wondering if geos would work at all with my setup? I know they can't sift gravel but some pellets are missed by the bass and fall to the gravel and it'd be nice to have something down there to help clean-up that ISN'T a catfish but would be biotope correct...