Tetra Head & Tail Light (Hemigrammus ocellifer)
The Head & Tail Light Tetra, also known as Beacon Tetra, is a small South American freshwater fish native to the rivers of Guyana, Suriname, French Guiana, and the Amazon Basin in Brazil and Peru. It is commonly sold in the aquarium trade as a tank-raised specimen.
Reaching a maximum size of 5 centimetres (2.0 inches), this fish is easily recognizable by its distinctive pattern of bright spots on the head and tail, which give it its common name.
Mature females are typically fuller-bodied than males, making sex differentiation possible with age and development.
| Species | Common Names |
|---|---|
| Hemigrammus ocellifer | Beacon fish, Beacon tetra, Head-and-tail light tetra, Head-and-taillight tetra |
| Alternative Names | Hemibrycon ocellifer, Tetragonopterus ocellifer |
| Habitat | Rivers of Guyana, Suriname, French Guiana, Amazon Basin (Brazil, Peru) |
| Size | Up to 5 cm (2.0 in) |
| Sexual Dimorphism | Mature females are fuller-bodied |
FAQ
What is the typical size of the Head & Tail Light Tetra?
The maximum size of the Head & Tail Light Tetra is 5 centimetres (2.0 inches).
Where is this fish originally found?
It is native to the rivers of Guyana, Suriname, French Guiana, and the Amazon Basin in Brazil and Peru.
How can you tell the difference between male and female Head & Tail Light Tetras?
Mature females are typically fuller-bodied than males.
Simon Vaughan –
The Head & Tail Light Tetras are very active and add a nice visual appeal to the tank. Their bright head and tail markings stand out well in a community setup. I’ve kept them with other tetras and they seem to get along well. They are easy to care for and thrive in a well-maintained aquarium.
Ryan North –
These fish are a great addition to a small community tank. The lighting pattern on their heads and tails is unique and eye-catching. They don’t require special water conditions and adapt well to standard aquarium parameters.
Carl Wilkins –
I bought a small group of these tetras and they’ve been very active and healthy. The coloration is vibrant and the fish are peaceful. They don’t compete with other species and are a good choice for beginners.