I currently moved my peacocks out of my 125 and into the 75. I had an empty 125 and decided to go look for an albino Oscar. I bought about a 6 in or bigger albino o, and a about 4 inch jack Dempsey. My O who is extremely larger than the jd seemed to be getting bullied by the jd. my buddy is currently housing the jd with his o for me. His Oscar is about the same size as my jd and they seem to be getting along fine.... is my Oscar just that passive? Should I go with more passive tank mates? Or should I let my Oscar establish himself then try bring the jd back into the tank ? If more passive tank mates, what are some suggestions?