Kevin is right on. I lucked out and found two sharing a tank at my lfs
. From what I observed over a few visits they seemed to be displaying the behavior of a pair forming. Against the advice of others I grabbed them at a great price. 5 weeks later I am happy to report they seemed to have formed a solid pair. One is slightly larger(female) and bullys the other a little, but the smaller (male) never tries to hide and they are never to far from one another for very long.
Of all the clowns, I find the maroon most interesting. Another LFS
has an adult (6-7") in a display tank and it is always out and very responsive. Just be aware that as they mature they are known for being very aggressive, so be careful in what order you put them in your tank.
From what I have read and observed I think your best bet is to start with juvenals as Kevin suggested. I have seen multiple juvenals in one tank at the lfs
before, but never more than a pair of adults together. If you have the ability and the price is right you could even think about getting 3 or more if you have someplace you could eventually move the odd man out.