X-ray Tetra

Pristella maxillaris

A translucent, hardy tetra with black-and-yellow fin flags; tolerates a wide range.

Water

Freshwater

Temperature

72–82°F

pH

6–8

Hardness

3–20 dGH

Max size

1.8 in

Min tank

15 gal

Temperament

Peaceful

Social

Schooling (6+)

Swim level

Middle

Diet

Omnivore

Care level

Beginner

Lifespan

3-5 years

Breeding

Egg-scatterer

Suitability

Common

Origin

Amazon and coastal Guianas

One of the few tetras that handles slightly brackish or hard water, making it very forgiving. Peaceful and active in a group.