饰纹管吻鲶 · Twig Catfish

Overview

The sticklike Farlowella vittata often remains motionless against wood, moving between surfaces in short hops. Low activity does not mean simple care: stable clean water and an established supply of biofilm, algae, or leaves are essential.

Distribution & habitat

It occupies the Orinoco basin of Colombia and Venezuela, among submerged vegetation, leaves, sticks, and tangled roots along gently flowing margins.

Aquarium setup

An aquarium around 90 by 30 by 30 cm can be suitable. Sand, smooth rocks, branches, and subdued lighting create useful habitat, though planted setups also work. Maintain oxygen-rich water with a little current and consistently high water quality. Once settled, avoid unnecessary relocation.

Diet & feeding

Use vegetables and plant-based prepared foods as the main diet, with only occasional small animal-food supplements. It grazes leaves, wood, rocks, substrate, and glass, consuming diatoms and common green algae. This does not extend to troublesome brush or beard algae.

Behaviour & compatibility

Its retiring, peaceful nature makes food competition a greater concern than aggression. Avoid larger or vigorous feeders. Males may dispute space, but serious damage is unusual when suitably housed.

Sexual dimorphism

Mature males have broader snouts with rows of odontodes, absent in females.

Breeding

Obtaining eggs is easier than raising the fry. Start with six or more juveniles, maintain clean water, and condition with nutritious greens. Spawning usually occurs at night on vertical surfaces, often glass. The male fans the eggs for six to ten days until hatching and may accept additional clutches. Small yolk reserves disappear within days, leaving fry vulnerable to starvation. They need constant access to soft digestible plant material, algae-coated rocks, or suitable dried leaves. Early losses can remain high despite careful feeding. Any separate rearing tank must contain water matching the breeding aquarium.

Notes

Misidentification is common; its long slender snout is a useful clue. Sensitivity to chemicals can cause fish to rest near the surface with the snout exposed, calling for prompt water-quality attention. A lifespan reaching fifteen years has been suggested, rather than established for every individual.