I have kept them in in hard fresh water with ph on the alkalyn side .They adapted to my tap water with little in the way of additives . They breed easy .and are very devoted to the care of their young . I just thought this would be a good topic of discussion , didn't know where to put it , No place for Asian Cichlids . Anyone else have expirience , let's hear it maybe it will spark someones interest for something a little off the beaten path .