yes yes i know, the mbuna myths are put up as general fact on all kinds of cichlid sites, its most unfortunate.
I deal with alot of people on a regular basis who throw the african-w/americans argument out, so my patience for the statements is terribly low.
I've been posting on fish forums for two and a half years, have accumulated around 20,000 posts on various forums and I have yet to encounter anyone who has had their mbuna endure "malawi bloat". There are plenty of individuals who keep/have kept mbuna successfully long-term with American cichlids.
Its generally regarded by those "in the know" that all cichlids, african and american, have no problems with pH between 6.5 and 8.5, and perhaps hardness as well but nobody ever checks hardness anyway so thats sketchy. LFSes across multiple countries keep their fish in god only knows how many different types of water, and they're still alive and ready for someone's tank. The important factor in keeping cichlids--- and other fish in general-- is water STABILITY, not specific parameters, and cichlids of both continents have proven this. Reputable, ichythyologist-approved large-scale fisheries raise and breed Tanganikans in pH 7.1. Throw that in the face of the next ignoramus who dares say otherwise.
I've been keeping mbuna with American cichlids for several years in multiple setups, and feeding diets including high-protein cichlid pellets, live ghost shrimp danios tetras gouramies goldfish barbs fathead-minnows and god knows what else, and I have yet to see any of my mbuna fall ill/die from anything other than harassment by other mbuna.
anyway that rant probably isnt very organized or eloquent but im tired of typing the same damn reply so often. Hope you learn something from this, I take fish seriously and I don't spew bull****, especially on this particular matter. blahblaglahblbafdsffd enjoy