MOFIB - Marine Ornamental Fish & Invertebrate Breeders - Marine Fish Breeding / Saltwater Fish Breeding / Marine Invertebrate Breeding
Great site on breeding any fish possible that you can in a reef tank...
Just from experience, A healthy spawning pair of clowns in ones tank, doesn't mean they will spawn for you. When you finally get them to lay eggs, they don't like change, and can stop for years if they decide to.. I agree with the paring method.. I did this with maroons, and bought the largest one the LFS had, and the smallest.. Make sure there is a large size difference between them.. Or just buy two juvies, and let them decide gender on their own.
Jason