The reason Zebra Obliquidens being an endangered species in the wild but thrives in aquarium hobby is due to the reason they are easy to breed. This fish is a mouth-brooder, the male guards a certain spot usually a flat surface or a cave or a dug up nest, during spawning the male intensifies his colors of red & yellow under belly. Females are tolerated around this area, once the female lays her eggs in this area, then she picks it up & carries it in her mouth, the male circles her as if confusing her with his egg spot on his cloacal fin, when the confused female tries to pick the egg, the stimulated male releases sperm which fertilize eggs in females mouth. Eggs are held in females mouth for up to 3 weeks before they are hatched, during this time the female does not eat, to avoid female getting weaker, within a weeks time that female is holding the eggs, most breeders stripe her off the eggs & hatch it in a fish breeding tumbler or incubator. However, if the eggs are held in the females mouth in 3 weeks time you would have a free swimming fry. Female would care for the fry for few days. It's highly recommended to raise the fry in a separate grow-out tank.