I have a buddy who is forced to take his tank down. He said it crashed out of neglect. Regardless, he has a pair of false perc ocellaris. I have a pair of false perc ocellaris too. He wants me to take his too. I know False O's can house with false O's but, his pair are established. My pair are much larger and very well established. Generally we like to put them all in at the same time to establish one breeding male and female no matter how big the herim is. This is a different scenario for me. Definitive knowledge helpful. Does anybody know if this is a problem?