Neolamprologus similis 'Kapampa'

Neolamprologus similis 'Kapampa' is the Kapampa DRC locality form of one of Lake Tanganyika's most social shell dwellers. Where most Neolamprologus are solitary or harem-based, similis forms genuine colonies of up to hundreds of individuals on large shell beds, with each fish occupying and defending a single shell within the group. The sight of a colony reacting in unison to a perceived threat — dozens of tiny fish simultaneously diving into shells — is one of the most memorable spectacles in freshwater fishkeeping.

The Kapampa form is distinguished from standard similis by slightly more robust barring and a marginally warmer body tone. In the aquarium a colony of eight to twenty individuals can be maintained in a 60–80 L tank with a generous shell bed and fine sand substrate. The colony will establish a pecking order but intraspecific aggression rarely causes injury.

Similis is one of the most beginner-friendly shell-dwelling cichlids and breeds readily in captivity. Fry are raised communally within the colony, with older individuals apparently tolerating juveniles near their shells. Regular small water changes and a varied micro-food diet are all that is needed to maintain a thriving colony.

Water: pH 7.8–9.0, GH 10–18, KH 8–14, temperature 24–27 °C. Tank: 40 L for a small group; 1 shell per fish minimum; fine sand; sponge filter ideal. Feeding: Micro pellets, frozen Artemia nauplii, Cyclops; twice daily small portions. Breeding: Shell-spawner; colony-style; fry raised within group; small clutches. Compatibility: Species tank or with Cyprichromis; do not mix with other shell dwellers.