Very sensitive to water conditions. As clean as you can make it. I would only have them in a matured tank of more than 8weeks or so.
Best water is slightly acidic (don't know where "very acidic" came from) and soft. e.g. pH 6.5 and general hardness(GH) below 8. Without this, their life span is significantly shortened. Also means you wont see breeding behavior or fantastic colours.
Have seen the breed in dug out pits and in the corners of tanks. Others have had luck with small flower pots.
Babies are best fed on baby brine shrimp when the fry reach the free swimming stage.
Parents are great guardians of them.