Head & Tail Light Tetra Care Guide - Aquarium Tips, Diet & Breeding

The Head & Tail Light Tetra is a small, lively characin named for the glowing yellow-to-orange markings near the base of its tail and behind the eye. A dark horizontal stripe runs along the body, while the silvery-gold flanks catch the light as the fish moves through the water.

These tetras are peaceful, active shoaling fish that spend much of their time in the middle levels of the aquarium. In a group, they display confident, social behaviour and may perform brief, harmless bouts of sparring as they establish their position within the shoal.

In the wild, Hemigrammus ocellifer is associated with quiet, plant-rich waters, submerged vegetation and leaf litter. The combination of shaded surroundings and gently tinted water helps emphasise the reflective body and distinctive luminous markings.

The species has been popular in the aquarium hobby for many years because it combines attractive colouring with a generally calm temperament. Its flashing head-and-tail markings make a group especially appealing when viewed against a darker background or among dense plants.

Head & Tail Light Tetras are native to northern and central South America, with populations recorded in Brazil, Peru, Colombia and Guyana. They inhabit slow-moving tributaries, flooded forest margins and other calm freshwater environments associated with the Amazon and adjacent river systems.

A group should be given at least 60 litres, with a tank around 60 cm long to provide useful swimming space. Use a planted layout with open central water, shaded areas, driftwood and perhaps a modest amount of leaf litter. Dark sand or fine rounded gravel complements their colours, while gentle filtration and subdued lighting create a natural-looking environment without excessive current.

Up to 4.5 cm (1.8 in) in total length. Females are usually slightly larger and deeper-bodied than males, which commonly reach around 3.5–4 cm (1.4–1.6 in).

Head & Tail Light Tetras are omnivores and accept quality small flakes, micro-pellets and granules. Offer a varied diet supplemented with frozen or live foods such as baby brine shrimp, daphnia, bloodworm and mosquito larvae. Small portions fed regularly help ensure that every fish in the shoal receives food.

Head & Tail Light Tetras suit peaceful community aquariums and can be kept with other similarly sized tetras, rasboras, small danios, peaceful barbs, Corydoras, kuhli loaches, Otocinclus and small, calm dwarf cichlids. Avoid large predatory fish, fin-nippers and boisterous species that may intimidate or outcompete them. They should not be housed with fish large enough to swallow them.

Head & Tail Light Tetras are egg-scattering fish that can be bred in a separate, dimly lit aquarium with soft, slightly acidic water and fine-leaved plants or spawning mops. Condition the adults with plenty of small live or frozen foods, then introduce a pair or small group. Spawning usually takes place among the plants, after which the adults should be removed because they may eat the eggs. The eggs hatch in roughly one to two days, and the fry can be raised on infusoria or other suitably tiny foods before progressing to newly hatched brine shrimp.

Females are generally fuller through the body, particularly when carrying eggs, and are often slightly larger than males. Males tend to be slimmer, although the difference can be subtle in young or poorly conditioned fish.