Neolamprologus ocellatus 'Mwenge'

The Mwenge population of Neolamprologus ocellatus originates from the Tanzanian shoreline and stands out from southern populations by its noticeably deeper body colouration — a richer caramel-tan with stronger contrast on the eye-spots — and marginally larger adult size in males. Wild-collected Mwenge specimens are occasionally available from specialist importers as Tanzania exports relatively limited numbers.

Husbandry follows the standard ocellatus protocol: hard alkaline water, a sandy substrate, and an abundance of shells. The Mwenge population has a reputation for being slightly more aggressive than Zambian forms, so ensure adequate shell provision and territory separation if keeping more than one male. Females, however, coexist peacefully within a well-spaced shell bed.

This is an excellent variant for the hobbyist who wants a Tanganyika shell dweller with a slightly unusual regional flavour. Captive breeding is straightforward once a pair bonds, and the vivid Mwenge colouration intensifies further with a diet rich in carotenoid-containing frozen foods.

Water: pH 7.8–9.0, GH 10–18, KH 8–14, temperature 24–27 °C; stable alkalinity essential. Tank: 40 L; fine sand; 3–5 shells per fish; clean sponge or hang-on filter. Feeding: Frozen Artemia, Daphnia, Cyclops; micro pellets with colour-enhancing formula. Breeding: Shell-spawner; fry emerge after 10 days; independent brood care by female. Compatibility: Species tank or with Cyprichromis; Mwenge males are more territorial than Zambian forms.