Well reidi are the only ones I've raised as I can't get any of my other species to give up the fry so far.
Most of my experiences with reidi fry are on threads on the seahorse forum but basically, I've tried a lot of ways, kreisel and others but didn't have any luck until I went to 4L wide mouth pickle jars.
Basically I start off with around 100 or so to a bottle until they grow larger and gradually add more jars and reduce the qty per jar until at 3 months or so I put them in a rearing tank.
I use live phyto in the jars and they are lit 24/7.
Each jar has a rigid airline tube in it to keep the water and fry continually in motion so they cannot stop at the top of the container.
I feed enriched rotifers for the first two weeks, enriched rotifers and enriched on grown bbs for the second two weeks, and then just enriched on grown bbs after that until they start to take larger live brine, but always enriched.
Every jar is cleaned every 48 hours with 100% new water, food, and phyto. I split whatever number of jars there are so that I only have to do at most, 6 jars per night.
RAISING REIDI FRY