Which process? Figuring out what fh I have or breeding them? Quick answer...both...lol. Breeding them can be a challenge. Most of the time your female has to be much smaller than the male or they'll just fight to the death if neither can gain dominance. I've found females tend to be the more vicious of the two. As far as breeding kamfa, I haven't had success doing it yet. I'm trying to start more towards the beginning though as finding a male kamfa is like finding a needle in a haystack. If you do find a proven fertile male though, it'll take some real deep pockets. The aggression part stated above is just through what I and many others I've learned from have experienced. Every fish is different. Then you have those 'fish whisperers' out there with community fh tanks that blow my mind. If I could get that to work on a long term basis I'd have a lot less water changes to do.