"Breeding:
Thorichthys meeki aren’t necessarily easy or hard to breed. They are, however, tricky to sex. The lazy man’s way is put 6 or 8 in a tank and let them pair off. If you have specimens that are in excellent condition, the males have much longer filaments on their dorsal and anal fins than the females. If they are chewed up or for whatever reason gone, the plumpness of a ripe female is not too difficult to spot. Beware the dorsal fins of the females can be pointed so that tried and true method doesn’t always work with Thorichthys meeki. Once paired, they breed quite prolifically and take parenting to the extreme. Cichlids became popular in the hobby because of their behavior and parenting skills. If you have never seen a cichlid play parent, this is the fish for you. Just don’t stick your fingers in the tank. Females will lay anywhere from 100 to 500 eggs at a time. Fry will start wiggling in 2 days and become free swimming in about a week. Both the male and female will protect the nest from other fish."