Persephone Betta

Geographic Origin and Biotope: Extremely restricted to deeply shaded peat swamps in the state of Johor, Malaysia. Lives in pools among submerged roots, immersed in total darkness (hence the name Persephone, goddess of the underworld).

Taxonomy and Morphology: Black Betta (Betta persephone). Critically endangered species belonging to the "coccina" group. A tiny Betta with a tapered torpedo body, large eyes and relatively short fins. The only Betta in the group not to be red.

Social Behavior: Relatively peaceful but males are slightly territorial in tiny spaces. Forms fluid hierarchies and it is recommended to keep them in pairs or small groups, given their shy and delicate nature.

Coloration and Sexual Dimorphism: Males are inky black, with red pelvic fins, black fins with an electric blue or iridescent green margin. Females are brownish, less black, and show dark horizontal bands depending on stress or reproductive cycle.

Aquarium Setup: A strictly "Blackwater" mono-specific nano-aquarium (min 30 cm / 12 inches). Substrate of pure peat and catappa; the water must be tinted a dense "strong tea" color. Faint lighting. Hiding places created from small interwoven twigs or clay tubes.

Diet and Feeding: Strictly carnivorous, prefers very small live food (brine shrimp nauplii, micro-worms). Often does not recognize or refuses commercial dry food.

Water Quality: Extreme chemical conditions: pH 3.5 - 5.5. In waters with a pH above 6.0 and non-zero hardness, the immune defenses collapse rapidly. Water quality must be pristine but free of violent flow.

Compatibility and Tankmates: Exclusively Species-Tank. Given the size, the extreme chemical requirements and the extreme shyness, any other species would be a stressful or deadly tankmate (perhaps tolerates only micro-larvae or small caridinas).

Aquarium Reproduction: Submerged bubble nester. Creates small hidden nests in tubes or under huge leaves on the bottom (not on the surface). The brood produces 20 to 50 eggs which the male cares for with absolute dedication.

Risks and Diseases: Species considered IUCN "Critically Endangered" (CR) and close to extinction in the wild due to the drainage of swamps for palm oil. Its purchase is an act of ethical conservation and must be treated as such.