Checkerboard Cichlid (Crenicara punctulatum)

Geographic Origin and Biotope: Central Amazon River basin and Guiana rivers. Inhabits slow or moderate-flowing rivers, oxbow lakes shaded by trees and bodies of water rich in submerged wood and dry leaves.

Taxonomy and Morphology: Checkerboard Cichlid (Crenicara punctulatum). Dwarf cichlid with a tapered and elegant body. Shares the family (and a vague juvenile resemblance) with the genus Dicrossus, but has a rounded/oval tail instead of lanceolate or lyre-shaped.

Social Behavior: Very peaceful compared to other dwarf Cichlids. Relatively shy if kept with overly boisterous fish. Does well in small groups (e.g. one male with 2-3 females) in appropriately sized tanks.

Coloration and Sexual Dimorphism: "Checkerboard" livery: alternating rows of square black spots along the silvery/golden flanks. Adult males develop reddish and iridescent blue coloration on the fins and are noticeably larger and slenderer than females.

Aquarium Setup: Aquarium of at least 100 cm (40 inches) in length. Necessary fine sand bottom, numerous shelters formed by bogwood roots, oak branches, half coconuts and dry leaves (Catappa) that amber the water.

Diet and Feeding: Micro-predator. Divide meals. Requires daphnia, brine shrimp and bloodworms (frozen or live), accompanied by very fine protein granules for dwarf Cichlids that sink slowly.

Water Quality: Extremely sensitive to chemical quality. Demands soft (low GH) and acidic waters (pH 5.5 - 6.5), irrelevant nitrates and frequent, meticulous water changes.

Compatibility and Tankmates: Ideal pairing with small South American fish (calm Characins like Neons, Nannostomus) and peaceful bottom fish (Corydoras, Otocinclus). Not suitable for tanks with large or aggressive Cichlids.

Aquarium Reproduction: Females lay pinkish eggs (about 100) on broad leaves, flat roots or sheltered rocks. Notable parental care by the female, while the male patrols the perimeter.

Risks and Diseases: Failure to acidify the water and poor hygiene lead to rapid systemic bacterial infections or Hexamita (hole-in-the-head disease).