I think if you keep them well fed they're unlikely to bother going for eggs in caves. I've housed them with Pelvicachromis pulcher and had them raise fry relatively out in the open. The fry were eventually eaten, but I honestly suspect that the Stomatepia pindu had more to do with it than these guys. They are horrendous to each other, so larger groups are generally better. You can expect to lose a few as they mature, particularly if you've got more than one male. As you've seen in my tank, I use strong current to keep them from being able to easily chase each other. An added bonus is that the females can perch atop a power head if they're sick of being pestered by the male.
