Scatter large clay flower pots on their sides facing away from each other on the bottom of the FT. The males will claim a territory and lure the females into them to breed. If you are using filtration with a suction, the fry will be sucked up and lost when the female releases them. You must use some kind of air/foam filtration to keep from loosing the fry. Also there should be no more than one male to every 3 or 4 females or the males will kill the females.