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Head-and-taillight tetra (Hemigrammus ocellifer)
AI illustration, not an ID reference

Head-and-taillight tetra

Hemigrammus ocellifer

FishFreshwater

Care level
Easy
Temperament
Peaceful
Recommended tank
60 L
Maximum size
4.5 cm
Temperature
22–28 °C
pH
6–7.5
Group size
≥ 6
Diet
Omnivore

Care at a glance

The head-and-taillight tetra from the Amazon owes its name to two coppery patches that catch the light: one above the eye and one at the tail base, like a headlight and a tail light. Under side lighting you sometimes see only those two dots moving through the tank.

It is easy, peaceful and undemanding, which makes it a rewarding schooling fish for a community tank. Keep it in a group and give it a dark substrate and some planting, and those little lights show at their best.

Related species

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Values are mainstream hobbyist guidance, not gospel — always watch what your own animals need.