Ptychochromoides (Cichlid) is one of the rarest and the most threatened fish species in the world. There are three species critically endangered in Madagascar. We plan to reproduce this species in order to reintroduce them in the wild. We have tried many techniques but we have not achieved our goal until now. Moreover, we can't lead deeper research as we don't have means. We have heard that some aquarists have specimens. Is there anyone who can advise us? Could you please share your knowledge?