raising killie frys like a walk in the park, clown killie frys are super small that on thier first 2 weeks are impossible to eat BBS, i did the spiraluna and microfood method, but the best is infusoria, but if you want a non stop culture daily this is what i did, and works like a charm.
when you hatch clown killie eggs using peat moss method ( which is the best ), the water that you use is the best source, take some peat moss and water from the hatching tray and leave it standing in a small close lid container even in total darkness for couple of days. then take a strong light you will see all these micro organism swimming all over the place, pour half of those to your frys daily, then just add aquarium water to repelish the culture, you will have a non stop infusoria, but make sure theres some java moss in your killie fry container that way it can promote some too, right now i have over 30+ 2 weeks old frys, some are already eating BBS. i use the peat moss incubation.
all they need is to make it through that first 2 weeks, i seperate
those bigger ones that already eating BBS that way i can control the feeding, replace the water with the water that has the infusoria culture daily, smaller container such as this ziplock container works very well so that they can spot the food right away, hope this works for those who are going to breed clown killies or any smaller killie frys in the future