Original reference as:
- Konings, Ad. 1995. "Malawi cichlids in their natural habitat (2nd edition)". Cichlid Press. 352 pp. ISBN: 978-0966825534 (crc01582)
Conservation: Protomelas sp. 'steveni imperial' is not evaluated by the international union for the conservation of nature in the iucn red list of threatened species. Protomelas sp. 'steveni imperial' is a very common cichlid and appears nowhere threatened, either by over-fishing or otherwise.