X Ray Tetra (Pristella Maxillaris) Fish Species Profile
The X-Ray Tetra is an easy, peaceful fish that can adapt to a wide range of water parameters, are hardy, and they can tolerate other species. They are readily available in the hobby and are a relatively popular fish for in the community aquarium.
These Tetras have a small translucent body, and you can see their backbone. The scales of the X-Ray Tetra are a yellowish-silver colour that is very faint, resembling nearly golden in some lights. The X-Ray Tetra also displays a re-tipped tail and strikingly lined anal and dorsal fins that are black, yellow, and white. This species has a bony internal structure known as the Weberian apparatus, which is used while picking up sound waves and adds to their sharp sense of hearing.
|Scientific Name||Pristella Maxillaris|
|Other Names||X-Ray fish, Golden Pristella Tetra, Water Goldfinch|
|Aquarium Level||Middle - Top|
|Difficulty||Beginner - Intermediate|
|Best kept as||Groups 6+|
|Lifespan||up to 5 year|
|Maximum Size||up to 5 cm|
|Temperature||75 - 82 ℉ (23.9 - 27.8 ℃)|
|PH||6.0 - 8.0|
The X-ray tetra is endemic to South America. It is found in tributaries in both the Orinoco and Amazon rivers. You can also find them in swamps and coastal rivers in Guyana, Suriname, Venezuela and French Guyana.
During the dry season, these Tetras inhabit clear water tributaries and streams and when the rainy season comes they move to flooded marshlands of savannah, where the water is softer and more acidic where they will spawn amongst the aquatic vegetation.
The X-Ray Tetra can live in both freshwater and brackish waters.
In the home aquarium, these fish are unfussy. Please give them a mixture of dried flakes, pellets and granules along with small live and frozen foods such as Artemia or Daphnia to provide them with a fully nutritious diet.