Steve I've been raising this fish for quite some time and have a "colony" of them. They are sensitive to water changes. They like the water more acidic than some of the other dwarfs. I keep mine in pH about 4.5 -5.0. I have had success by keeping them crowded like African cichlids. If there are only a few fish in the tank, the dominant male may kill all the other fish. Over all, they are not too difficult to spawn and raise. Tom