sexing juvi UMBEES

[CubanB]

i'm getting around 15 @ 4cm in a couple of days. i only want to keep one male though

is there any way to tell the M + F apart at this size? if not what size would they be and what characteristics do they each have so i can be on the look out!!

any feedback would be appreciated

 

[Jakob]

Could be, you would probably have too wait until they reach 5-6cm.
Good Luck with those