they breed well.....what i would do is a 50% water change about 4 days befor you want them to breed....use cool water for the change and try to do it on a rainy day...or a day with low atmospheric pressure...
~place as many jars, rocks, cups, glasses, pots and enything else they can go in..
i set my tanks up like a human yard....i place the openings of the jars, pots w/e away from ewachother. some openings to these are only half an inch form the tank glass making the sih have to squeeze in. be sure there is enough room for the larger males to fit in with the females.
~ place plastic plaants and bubble rock curtains around each jars open end....leaving about a 6"x6" "yard" to keep each pair out of direct view of the next...(like a hedge row for humans)
~ i would put one male for every female or one male for 2 females max!!!
~ i would satrt with up to 4 pairs....im unsure of the size of your tank...
~you need to set up a small 10 gallon too for the fry.... if you need advice on raising fry let me know...
~ remove the fry with a syphon as soon as they swarm and are free swimming....then give the parents about a week and do the whole thing over.