An evolving Topic
What more can be said that isn't in the Forum Header.
There are a few truly commercial Marine Ornamental Breeders out there.
I will try to post their web links and/or contact info here.
In addition, there are many commercial hatcheries of foodfish/shellfish. Their methodology is often unique to their operations. While not encouraging the discussion of foodfish production, their methodology may be of interest to Marine Ornamental Breeders. To this end their input is encouraged.
Note that the intense production of larval Mercenaria mercenaria yields 20 million trochophore larvae per induvidual female clam. The size rang allows them to pass a 100 micron sieve and hold on a 53 micron sieve (personal experience). They start feeding within hours of fertilization and may be a good food source for those small Ornamental fry.
Input IS encouraged.