http://cichlidresearch.com/hybrids.html
The accidental hybridization of cichlids is a common problem in the hobby and most responsible aquarists cull the fry or eggs.
The diversity of cichlid species is such that identification is a fundamentally difficult thing at best, and to confuse the issue with fish that do not exist in the wild makes it an nearly impossible task.
Perhaps of most concern is the way hybrid cichlids like the flowerhorn or 'blood parrot' could be mistakenly identified as "pure" cichlid species. It is conceiveable that poor quality flowerhorns, could be mistaken for cichlids such as A. trimaculatus or A. citrinellus and bred back with the original species. this has already occured in cichlids such as Vieja synspilus, V. maculicauda and V. bimaculatus, and this only due to accidental hybridization by hobbyists. with the deliberate large scale production of hundreds of thousands of hybrids, the risk to the hobby is increased many times over. In Australia at present it is very difficult to find good "pure" strains of the Vieja species mentioned above or "pure" discus species such as the brown discus.
reintroduction of cichlids in the hobby into natural settings can become a problem. it already is in Florida. with the threat to many ecosystems globally, the cichlid hobby may provide future sources of endangered fish for re-introduction into the wild. It is therefore important that all cichlid keepers are aware that the fish we maintain in our aquaria are potentially endangered in the wild, due to a variety of factors eg: competition from other species such as the Nile Perch and urban development. In this awareness it is important to strive - wherever possible, to maintain cichlids in our aquariums as they exist in the wild.
what should you do to be part of the solution rather than part of the problem? JUST SAY NO to hybridization by not buying or producing such fish.