Ive got 5 Unidentified geophagus (Probably tapals ranging from 3-5") in a 40x18x18 with a Black belt cichlid and a small Fei feng, and the geophagus are getting picked on a little by the BB, should i move the geophagus into a 4x2x2 with 10 Dats ranign from 1-5", and 4 small 2.5" Bolivian rams and a 8" Silver arowana Should they be ok in here? Thanks!