Stomatepia mongo
Stomatepia mongo is a rare (CARES listed) endemic cichlid from Lake Barombi Mbo in Cameroon. This species has only been collected 3 times, and it was bred first by a NECA member, Lisa Hoeber of Super Cichlids. These fish are F3, and are from the 2nd import in 2018. At this time I know of only 5 American hobbyists who are keeping this species, and only 4 of whom have bred it successfully.
https://www.youtube.com/watch?v=dHwaFlmID4Q