
Tetras and Characids
X-Ray Tetra
Pristella maxillaris
Photo: Richard Bartz, Munich Makro Freak · CC BY-SA 2.5 · Wikimedia Commons
Key facts
- Temperature22–28 °C
- pH6–8
- Minimum tank60 l
- Adult size4.5 cm
- Difficulty★☆☆☆☆
- Lives in a groupof 6 or more
- TemperamentPeaceful
- WaterFresh
Full profile
- Family
- Characidae
- Origin
- Amazon, Orinoco and coastal rivers of the Guianas
- Size
- 4.5 cm
- Temperature
- 22 – 28°C
- pH
- 6.0 – 8.0
- GH
- 2 – 20 °dGH
- Difficulty
- ★☆☆☆☆
- Water type
- tropical freshwater
- Swimming level
- medium
- Behavior
- Pacific
- Minimum number of individuals
- 6
- Minimum aquarium size
- 60 L
- Diet
- omnivore
- Reproduction
- oviparous
Notes: Its transparent body reveals its swim bladder. The dorsal and anal fins have yellow, black, and white spots. In the wild, it can tolerate even slightly brackish water.





