Lamprologus callipterus

Lamprologus callipterus displays one of the most extreme sexual size differences in the fish world, with males reaching 15cm while females remain under 4cm. Males collect and guard a cluster of large snail shells, each occupied by a female who spawns inside. The shell-collection and harem-guarding behaviour makes this a uniquely fascinating species for experienced aquarists.

Water: 24-27°C, pH 7.8-9.0, hard alkaline water. Tank: 120L minimum; sandy substrate with large Neothauma shells for females; open space for the dominant male. Feeding: Quality carnivore pellet for the male; micro-pellet or crushed flake for females. Behaviour: Dominant male guards harem; satellite males attempt sneaky fertilisations — fascinating to observe. Compatibility: Upper-level Cyprichromis or Paracyprichromis; avoid similarly shell-using species.