I recently bought a pair of angels had them going on a week . the tank isnt set up (aquascape wise) but it seems like i have a bully within the two. what should i do ? should i remove the bully and get two to replace him to make three , or just add another one so the agression will be spaced out ? in the am i have 12 emperor tetras coming in that i bought. as dither fish will they smooth out the agression? I feel adding a third one to the party may smooth it out but im not sure. these angels are being housed with 12 emperor tetras 2 pearl gouramis and a german blue ram.