We all know how difficult it is to identify the sex of these fish, so please post a picture in here and we'll try to help you (or at least give an educated guess!).
HI I can only say that my old Alpha male ( maybe even 7 years old)is so "furry"that you can see his Odontes on the front fins from 3 feet away. I suppose he is admittedly an easy one to sex. Also, he is quite a bit bigger than the females...also bulkier with maybe a bigger head