EBJD fry question

[Bktgifridays]

I've been reading alot about hatching baby brine lately. Is this 100% necessary for successfully raising ebjd fry? Could this be the reason I have not been able to identify EBJD from BGJD in previous spawns. Simply cause the EBJD's did not survive? I currently have a batch of 200 or so that are about 3 weeks swimming and living off crushed cichlid flake. Do you think i've lost all my blues already? Just started a hatchery but is it too late for this batch? Any thoughts are greatly appreciated!


(The parents)