this is my first cichlid tank i have a 37 gallon tank and did alot of research before i started my tank has been up and running for a couple months now. And it currently holds (in order from largest to smallest) one Aulonocara stuartgranti (Chiloelo) (red shoulder) estimating 4 inches, one melanchromis auratis (whom i just added today) estimating 3.5 inches, a psuedotropheus socofoli 2.75 to 3 inches, and a bumble bee (ddnt feel like typing all the long name anymore) and he is about the same as my socofoli. but now to the point my red shoulder peacock keeps picking on all the fish! i wanted a peacock so bad requested him in my lfs and got him but now he attacks my other fish randomly sometimes he doesnt seem to care but sometimes he is just so brutal. im afraid ill have to take him back to the store but i really dont want to cuz he is very special to me. can you help i thought adding the auratis today would maybe calm him down because i know they tend to be aggressive and figured they would keep his mind off of my other smaller fish. please help!!!