I moved one of my male bettas to my 10 gallon so he's in their all by himself. I previously had him in a 1 gallon. I would like to take the german blue rams out of the 55 and put them in with him, since I can never find them easily in the 55g. Does anyone know if they would be compatible? If not them, then what about phantom black tetras or swordtails? Thanks.