Bob- i wrote you via PM, but i have to agree w/ David on this one, do you have a photo? or have you seen these "1/4" fish superduper up close?
remember copepods and mysid shrimp look different, mysids tend to dart quickly, and swim kinda fish like.
have you had a close up of these spawn? I'm asking becuase yes your chromis will spawn in display tanks and adhere the eggs to the glass or rock walls. Anthias are ascension spawners and scatter eggs in the water column which then go over the overflow and the fry are planktonic, so normally you would be able to see then (picture smaller than a baby brine shrimp). 9 times out of 10 the "fry" your describing are mysid shrimp that live in the refugium, they look identical from far away using your eye, but under a 4X or 10X loop they are shrimp.
So lets assume you have fish fry, if you refugium well established and full of microfauna? If so then the fry will be eating the microfauna and you can suppliment the tank w/ enriched rotifers.
Since you were unprepared for this i assume you don't have any microfood growing at home? rotifers, brine shrimp nauplii, copepods?
I would recommend you start by reading the sticky thread in the fish breeding forum entitled microfoods. once you get an idea of what to fee the fry, you'll have a better understanding of what you want to try or not."