Head-and-tail Light Tetra

About

The head-and-tail light tetra (Hemigrammus ocellifer) takes its name from the two copper-gold spots that bookend its body, one behind the eye and one at the base of the tail, which flicker like tiny lights when a school catches the aquarium beam. In the wild, this species ranges across the rivers and coastal waterways of Guyana, Suriname, French Guiana, and the Amazon basin, typically favouring calm or slow-moving water rather than strong currents. It lives and forages in groups, picking at small invertebrates, insects, and plant material. In the aquarium, it's one of those fish that genuinely earns its reputation. Peaceful, active, and hardy enough to tolerate a reasonable range of water conditions, it fits comfortably into almost any community setup alongside livebearers, rasboras, danios, Corydoras, and most gouramis. Avoid keeping it with larger fish that might treat it as a snack, such as angelfish. Like most tetras, it needs to be kept in a proper group. Aim for at least six, but ten or more really brings out the schooling behaviour and makes those glowing spots worth watching. An albino form exists in the trade and requires identical care. Breeding is straightforward by tetra standards, making this a good species for hobbyists curious about spawning characins for the first time.