X-ray tetra
Pristella maxillaris · Characidae
Also known as Pristella tetra, Water goldfinch
Beginner
Translucent with yellow-black-white flag fins; one of the most adaptable tetras.
In short: An X-ray tetra needs at least 75 L (20 US gal), water at 22–28 °C (72–82 °F) and pH 6–8. It is peaceful, best kept in groups of 8 or more, and rated beginner to keep.
- Minimum tank
- 75 L (20 US gal)
- Temperature
- 22–28 °C (72–82 °F)
- pH
- 6–8
- Adult size
- 4 cm (1.6 in)
- Group size
- 8+
Care requirements
- Minimum tank volume
- 75 L (20 US gal)
- Temperature
- 22–28 °C (72–82 °F)
- pH
- 6–8
- Hardness
- 4–20 dGH
- Lifespan
- 4–6 years
- Diet
- Omnivore — flake, micro pellets, frozen foods.
- Care level
- Beginner
Origin & habitat
- Native region
- Amazon and Orinoco basins, coastal Guianas
- Water type
- Freshwater
- Biotope
- Coastal swamps and savannah creeks
- Natural conditions
- Tolerates hard water; even slightly brackish in the wild.
Behaviour & stocking
- Temperament
- Peaceful
- Minimum group
- 8 fish
- Swims
- Mid-water
- Good tank mates
- CorydorasRasborasPlaty
- Avoid
- Large predators
Breeding & difficulty
- Breeding difficulty
- Intermediate
- Sexing
- Females are larger and rounder.
- Notes
- Egg scatterer in fine plants.
- Common ailments
- IchFin rot
Will it fit your tank?
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