Channa andrao Breeding Guide
Breeding the dwarf Channa andrao: a paternal mouthbrooder bred regularly in captivity, with pair formation from a group and a high-temperature spawning trigger.
Overview
Channa andrao is an Indian dwarf snakehead and a paternal mouthbrooder which has been bred on a regular basis in captivity. It is an obligate predator feeding on insects and invertebrates in nature.
Sexing
Males have more extended dorsal and anal fins, more extensive iridescent blue coloration on the unpaired fins and a broader head shape when viewed from above. Females grow larger, have a heavier build and show greater red pigmentation on the body.
Conditioning
Condition breeding stock with live and frozen foods appropriate to an obligate predator before attempting to spawn. Well-fed, settled adults are more likely to form a stable pair.
Breeding Setup
- Temperature: 14-28 C (spawning induced at the high end)
- pH: 6.0-8.0
- Hardness: 36-357 ppm
- Start with 6-8 young fish to allow a pair to form, then remove the others
Spawning Behavior & Trigger
Once a pair has formed and the other fish removed, spawning is induced by providing a prolonged period of constant high temperatures while omitting water changes and other maintenance. During courtship the pair embrace in a manner similar to anabantoids, and the male then collects the fertilized eggs in his mouth.
Egg & Fry Care
The male incubates the brood for around 3-5 days, but this can be significantly longer, especially in younger, less experienced individuals. Brood care typically extends for several weeks, and females are known to produce infertile eggs in order to feed the free-swimming fry.
Common Challenges
Pairing is the main hurdle: simply combining a male and female is unreliable, hence the recommendation to raise a group and let a pair emerge. Younger males may hold for an inconsistent period before they become reliable brooders.