Any way to tell who the dad is?
I have an OB peacock in the tank, a tangerine peacock, a blue empress, a pheniculus, a fryeri, a eureka red, an albino eureka red and a couple of dolphins.
Any way to ever tell?
Of a few "litters" only 3 babies survived, 1- is all yellow 1- is brown just starting to color up with a bit of red (or maybe will be female)
and the 3rd is the above OB....any clue?

Hard to tell. Looks small and fins are not extended out but i think it is a little male. Try catching another pic with its dorsal fin perked up.

i would say male also as the fins look pointed to me