I have a 2.5" Senegal, 4.5" Albino Senegal, 5" Ornate, and a new baby Endlicheri of unknown size (it arrives tomorrow). When I go to pick it up, I was thinking of either getting a 4" BGK or a species of Pleco. Is the Pleco compatitble if it's the same size or bigger? If not, should I get the BGK?