坎氏纹首丽鱼

Overview

The slender dwarf cichlid Taeniacara candidi places substantial demands on water management. Even experienced keepers may find it challenging, and its small size should not obscure the potential for severe aggression within the species.

Distribution & habitat

This Brazilian fish ranges from the lower Negro along the Amazon toward the Tapajós drainage.

Aquarium setup

Dense planting and numerous refuges are important. Wood, roots, and ceramic or plastic pots can create shelter. Maintain warm, very soft, distinctly acidic water.

After a water change, a fish may remain on the bottom for a day or longer. Match replacement water to the aquarium temperature; warming it in a separate container before adding it slowly is a practical approach.

Diet & feeding

Dry food may be refused. Have a varied selection of frozen foods available and arrange a dependable supply of live foods, which are generally preferred.

Behaviour & compatibility

Reports describe unusually strong aggression for a dwarf cichlid, though accounts differ over whether males or females dominate. In an aquarium shorter than approximately 122 cm, combining several males carries a high risk that the dominant individual will kill the others.

Sexual dimorphism

Males are larger and more vividly patterned. Smaller females also retain blue spotting in the caudal fin.

Breeding

Aquarium reproduction has been reported repeatedly, although assessments of its difficulty vary. Very low hardness and strongly acidic conditions are generally used. Occasional success near neutral pH should be treated as an exception rather than a guide to routine maintenance. Females defend the fry with considerable aggression.

Notes

The older name Apistogramma weisei may be encountered. Generic placement has been debated, while the slender outline and forceful maternal defense remain useful aspects of the fish's identity for keepers.