Anyone keeping different kinds of clowns together.

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I have a pair of Ocellaris clowns, after 9 months they still will not host in my BTA, they prefer the torch coral.

I would really like to get maroons. Of course I have read that 2 different kinds of clowns are not compatible, however I have also read all kinds of things that didn't turn out to be true.

Is there anyone keeping two different clown pairs together, and how are they doing?