You mean besides me???? (actually that real -- i speak at aqurium clubs all the time on marine fish aquaculture, and am presenting on advanced fish breeding techniques at MACNA this year)
There are a few folks that talk about marine fish breeding, its starting to become vogue now.
The grand daddies are of course Martin Moe, and Bill addison. There are a bunch of folks who breed clownfish and do a great job at it, and have a wealth of experience.
What local clubs tend to do is to find a local club member (or members) whos bred marine fish (primarily clowns) and have them speak.
Lastly, if you contact me of the board I can provide you w/ names of folks who work at fish hatcheries and are now dabbling in marine ornamentals.
frank