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Fish

Kribensis

Pelvicachromis pulcher · also called krib, rainbow krib

Least Concern → omnivore Rivers & wetlandsRainforest

Flushing a vivid purple-red belly as she guards the entrance to a chosen breeding cave, a female kribensis outshines her own mate, an unusual reversal of colour roles in a small, generally peaceful West African cichlid.

Overview

The kribensis, Pelvicachromis pulcher, is a small, peaceful cave-spawning cichlid native to wetland and rainforest river habitat across Nigeria and Cameroon in West Africa. Its unusual reversal of typical cichlid colour roles, with females often more vividly coloured than males, dedicated cave-spawning breeding strategy, and generally calm temperament make it one of the most distinctive and beginner-friendly dwarf cichlids kept in aquariums worldwide.

When the female steals the show

While male colouration typically dominates in the cichlid family, the kribensis flips that expectation, with females developing a vivid purple-red belly that becomes most intense exactly when she is ready to breed, a signal aimed as much at her mate as at any rival.

Status

Least Concern, remaining widespread across suitable wetland and rainforest river habitat throughout Nigeria and Cameroon.

Kribensis: common questions

Which is more colourful, the male or female kribensis?

Unusually for a cichlid, the female is often the more colourful of the pair, displaying a striking purple-red belly that becomes especially vivid when she is ready to breed, a reversal of the more typical pattern in which male fish carry the brighter colouration.

Is the kribensis a good community aquarium fish?

Yes, this species is a small, generally peaceful dwarf cichlid, considerably less aggressive than many larger cichlid relatives, making it well suited to a calmer community aquarium alongside other non-aggressive fish, provided a suitable breeding cave is available.

Where does the kribensis lay its eggs?

This species spawns inside small cave-like shelters such as rock crevices, coconut shells, or short lengths of pipe, with the female typically taking the lead in guarding the chosen cave while both parents cooperate in defending the eggs and fry.

How can you identify a kribensis?

This species has a dark horizontal stripe running through each eye, combined with a generally golden-brown body and, in breeding females, a vivid purple-red belly, a combination of features that helps distinguish it from other small West African cichlids.

Sources & further reading