乔氏似鳞头鳅

Overview

Restricted to wet southwestern Sri Lanka, Lepidocephalichthys jonklaasi inhabits forest streams threatened by habitat loss. A suitable aquarium centers on sand for retreat and feeding, overhead shade, and gentle water movement.

Distribution & habitat

Known sites include the Gin, Kalu, Nilwala, and Bentota drainages and a small blackwater creek near Kottawa. Shaded shallow streams have clear or lightly stained water, sandy beds beneath leaves and branches, and overhanging roots. Aquatic plants are relatively sparse and the water is generally soft.

Aquarium setup

Allow a 60 by 30 cm footprint, using fine sand in which the fish can disappear or leave just its eyes exposed. Rough gravel risks injury and interferes with feeding. Place stable wood and rocks before adding sand, then supply leaf cover and dim refuges. Retain good oxygenation without a powerful current; protect filter openings and cover the aquarium securely.

Diet & feeding

Its natural diet is thought to consist mainly of tiny animal prey. Offer suitably small sinking foods together with live or frozen Daphnia, Artemia, and bloodworms, ensuring meals reach the fish rather than depending on leftovers.

Behaviour & compatibility

Genus-level guidance describes peaceful fishes that benefit from groups of at least four. Select companions suited to similarly quiet conditions and avoid domineering bottom-dwellers. Eggs and fry may be taken as food.

Sexual dimorphism

Mature males have enlarged pectorals with thickened, fused inner rays. Females are generally larger and deeper-bodied.

Notes

Large, vertically extended flank blotches can form irregular bars; three to six broad dark tail bands and a rounded to truncate tail provide further clues. A scaleless head does not imply a scaleless body. Subocular spines can catch in a net.