Multiple clownfish pairs in a single tank?

[rishu_pepper]

As I'm setting up a new tank (8', 165g), I am starting to think of my stocking list. I'm wondering if it is possible to keep more than a pair of clownfish in the tank.

Currently my Onyx clown pair (thanks Myka, they're doing well) are happily living in the big dinner plate sebae anemone. I plan to get some sort of carpet anemone or RBTA and would love to have other clowns hosting in there. Will it be okay to have multiple pairs or will they be aggressive towards each other? We're very attached to the Onyx's, but wondering if in a larger tank like this it will be okay for them to stick to their own territories/anemones.