| Common name(s) | Steel-Blue killifish, Blue lyretail, Gardner's Aphyosemion |
| Scientific name | Fundulopanchax gardneri gardneri |
| Synonyms | Aphyosemion gardneri (old genus name, not valid) |
| Size | 2.5" (6cm), females smaller |
| Origin | Africa: Nigeria and western Cameroon |
| Tank setup | Planted tank with subdued lighting and gentle circulation. |
| Compatibility | Best kept in a species tank, males can be quarrelsome. |
| Temperature | 22-25oC (71-77oF) |
| Water chemistry | Soft and acidic (pH 6.0-6.5) |
| Feeding | Omnivore: will take flake, supplement with small live and frozen foods |
| Sexing | Males are more colourful. |
| Breeding | Eggs will be scattered over fine leaved plants, hatching takes about two to three weeks. |
| Comments | Soft, acidic 'blackwater' conditions are ideal for this species. The use of peat in the filter or the addition
of commercial blackwater extracts or bogwood to the tank are recommended. |