Breeding the Indian Featherback (Chitala chitala)

Chitala chitala spawns once a year on submerged wood; the male fans and guards the eggs. It grows very large and is not bred in home aquaria.

Overview

The Indian Featherback (Chitala chitala) is a large South Asian knifefish reaching up to 122 cm SL, commonly around 75 cm, from the Indus, Ganges-Brahmaputra and Mahanadi basins. It is a facultative air-breather of rivers, lakes, reservoirs, canals and ponds and is listed Near Threatened by the IUCN (FishBase; Wikipedia). The true C. chitala is very rare in the aquarium trade (Wikipedia).

Conditioning

FishBase reports that the species spawns once a year during May to August, indicating a clear seasonal cycle. Conditioning would therefore mean well-fed adults exposed to the warm, rising-water conditions of that season; the diet in the wild is aquatic insects, mollusks, shrimps and small fishes (FishBase).

Breeding Setup

In natural and managed settings the fish use vertical structure as a spawning site. According to FishBase, females lay their eggs usually on a stake or stump of wood, so any setup must provide submerged wooden surfaces in a very large body of water.

Spawning Behavior & Trigger

Spawning occurs once a year in the May-August season (FishBase). Eggs are deposited on a submerged stake or stump, after which the male takes over their care.

Egg & Fry Care

FishBase states that males fan the eggs with the tail to keep them aerated and silt-free and guard them against small catfish and other predators. This dedicated paternal care is the defining feature of the species' reproduction.

Common Challenges

The combination of very large adult size, a strict annual season and obligate wood-substrate spawning makes home reproduction unrealistic; documented breeding comes from ponds and commercial aquaculture rather than aquaria.