Thanks for the replys everybody.
No, these did not come from Afrikan. They are descended from stock that Warren had but are not from him. The story as to how I ended up with them is no really mine to post.
How big do they have to be before they are sexible?
I have 4 all up. 1 of which is quite small, 1 is sulking, 1 is definitely a female and 1 is probably a male. It is the smaller 1 and the sulking 1 I'm not really sure of.