Breeeaaarh Deeeeply. Exhaaaale. Aaaaahhhhh. Be like the clam. Be happy like a clam.
I don't know much about clams (except some taste great with butter). But feeding youngsters is not necessarily only a reef forum myth. Secersl books for the hobbyist by some knowledgable & respected authors state little clams need phytoplankton. But I'll read the papers later....
I am relatively certain they don't NEED supplemental feeding. Why? 'Cause lots of folks never do it and their clams grow & thrive. But I bet they're eating SOMETHING. Maybe it's that yellow water (misc dissolved organics) ?
But I do know that zoox produce carbohydrates - sugars. Energy. They don't produce fat & protein and have a mechanism to harvest the minerals necessary to build shells. Nothing, not even simple plants, much less an animal can live & reproduce only on sugar. So where do these compounds come from?
They have digestive organs too! I saw a drawing in a book! Can somebody explain why Mother Nature included this in the clam package for millions of years? Ma Nature don't make nothin for no purpose. Come on now...don't y'all think they're eating something beyond direct uptake of NO3/4 & P04? It's a fact that other bivalves eat phytoplankton & other stuff, so what makes the Trican. group any different?
I like to speculate before reading those fancy papers.