Pristella Tetra

The Pristella Tetra (Pristella maxillaris) is a classic and highly recommended aquarium fish, often known as the X-Ray Tetra due to its transparent, translucent body. It is renowned for its hardiness and adaptability, making it an excellent choice for beginner aquarists.

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Pristella Tetra (X-Ray Tetra) Care Guide

 

 

Appearance and Characteristics

 

The Pristella Tetra’s most distinctive feature is its translucent body, which allows the spine and internal organs to be faintly visible (the “X-Ray” effect).

• Fins: They have a distinctive pattern of yellow, black, and white stripes on the dorsal and anal fins, which contrast sharply with their silvery-yellow body and reddish tail.
• Hardiness: They are highly adaptable to a wide range of water conditions and are one of the few tetras that can tolerate a slight amount of brackish water (though this is not necessary for a typical freshwater setup).

 

Tank Requirements and Water Parameters

 

• Minimum Tank Size: A 15–20 gallon tank is ideal for a stable environment and to provide ample swimming space for a school.
• Schooling: They are active shoalers and must be kept in groups of at least 6–8 individuals; they are bolder and more active in large numbers.
• Temperature: Tropical range: 72°–82° F (22°–28° C).
• pH Level: Highly adaptable: 6.0 to 7.5 (up to 8.0). They are very forgiving of water chemistry.
• Aquascape: They thrive in planted tanks and appreciate driftwood and floating plants that provide shaded areas for security. They are mid-water swimmers but will actively explore all levels.

 

Diet and Feeding

 

The Pristella Tetra is an omnivorous micro-predator that is unfussy about food.

• Staple Diet: High-quality flake food or small pellets.
• Supplementation: Provide a varied diet including protein-rich treats to maintain health and color: Brine Shrimp, Bloodworms, and Daphnia (frozen or live).

 

Compatibility

 

This is a model community fish—peaceful and generally non-aggressive.

• Good Tank Mates: Nearly all peaceful community fish of a similar size, including Corydoras, Rasboras, Guppies, Mollies, and other small tetras.
• Avoid: Large, aggressive, or predatory fish.