What I do when I used to breed them was put a male in a 5g and put the female in a jar inside the 5g for a week. Then I wait for the male to build a huge bubble nest. Add lots of plants for female to hide. When the female shows interest in breeding and is very round I release her with the male. Usually they'll breed either late in the evening it early morning. Once I see that the nest is full of eggs and the male is chasing and nipping the female, then I remove her. Male will do all the fry rearing. Feed sparingly as not to foul the water. Once fry hatch, feed newly hatched baby brine shrimp. At this time I remove the dad and start doing small water changes making sure temp is the same. Once fry grows I increase the air in the sponge filter.