The best way to get 2 maroons is to get a mated pair. They are the most aggressive clown. I wouldn't try a pair in that size tank as they get large. (the female will get pretty big, the male won't) That size tank would however host a pair of the smaller clowns, like the percs. I have a pair of these guys and they are great, no aggression at all, you can hand feed mine, and they are very active.