I have a 12-g nanocube and am getting a pair of Rod's onyx clowns at the beginning of March and am not sure if I want to get an anemone. If I buy an anemone, I'm assuming a BTA would be the best way to go? Any other recommendations? If I don't buy an anemone I would like to find a coral that could host the clowns. I was thinking Catalaphyllia sp. or another LPS variety. Or maybe a finger leather coral? Please advise. Thanks!