I breed some... but only my Victorians... I have a couple of ruby greens, Kyoga flamebacks, Zebra Obliquidens, and just got a new P. Nyereri 2'' male... ill find some females for him later
those are mainly for species conservation, but yes I do sell them for a little spending money, but most of it just goes back into keeping them healthy, with good foods, and water treatments
The rest of my fish are 1 offs to keep them FROM breeding, such as Male Melanochromis', Female Metriaclima, Male Labidochromis, Female Psudotropheus, and my Haps, pecocks and Tangs with the exception of my Frontosa are all males
makes mixing and aggression LESS likely... Its worked for me so far and Ive only ever had to re home one killer Rouge, I moved him before he could kill my Albino Red Top Zebra