X-ray Tetra (Pristella Tetra)

The X-Ray Tetra (Pristella maxillaris), also known as the Golden Pristella Tetra or Pristella Tetra, is a unique and hardy freshwater fish known for its semi-transparent body that allows some internal structures to be seen—hence the "X-ray" name. Native to the rivers and coastal streams of South America, this fascinating species is popular for its peaceful temperament and distinctive appearance. With a mix of silver, yellow, and a hint of iridescence, X-Ray Tetras are also characterized by their colorful fins, which feature black, white, and yellow bands. They typically grow to about 1.5 to 2 inches in length, making them an excellent choice for small to medium-sized community aquariums.

X-Ray Tetra Care Guide
X-Ray Tetras are resilient and easy to care for, making them ideal for beginners and experienced aquarists alike. A minimum tank size of 10 gallons is suitable for a small group, though larger tanks provide more swimming space and opportunities to observe their social behavior. They thrive in water temperatures between 72°F and 82°F and prefer a pH of 6.0 to 7.5. X-Ray Tetras are adaptable to various water conditions but are happiest in stable, slightly acidic environments with regular water changes.

Ideal Tank Setup for X-Ray Tetra
To create an optimal environment for X-Ray Tetras, provide a tank with dense plants, driftwood, and open swimming areas. They do well with low to moderate lighting and are especially vibrant when housed in a dark substrate or in a tank with a naturalistic setup. These tetras are schooling fish and should be kept in groups of at least six to feel secure and exhibit their natural behaviors. When kept in a well-planted tank with good filtration, they are an active and engaging addition to any community setup.

Diet and Feeding
X-Ray Tetras are omnivorous and require a balanced diet to stay healthy. High-quality flakes or small pellets are ideal for their primary food source, as they are easy to consume. To keep them in optimal health and enhance their colors, supplement their diet with occasional treats of live or frozen foods like brine shrimp, bloodworms, or daphnia. Feeding them small portions twice daily is ideal, ensuring they receive enough nutrition without overfeeding the tank.

Compatible Tank Mates for X-Ray Tetra
X-Ray Tetras are peaceful and make excellent community fish, compatible with other small, non-aggressive species. Ideal tank mates include other tetras, rasboras, guppies, Corydoras catfish, and dwarf gouramis. Avoid housing them with large or aggressive fish that might stress or harm them. Keeping them in a group of their own species also helps to minimize stress and allows them to display their natural schooling behavior.

Lifespan and Health
With proper care, X-Ray Tetras can live up to 5 years or more. Regular water changes of about 20-25% weekly, along with consistent monitoring of water parameters, help maintain their health. Observing them for signs of stress or illness, such as clamped fins or changes in color, allows for early detection and treatment of any issues. X-Ray Tetras are generally hardy but can be sensitive to poor water quality, so maintaining a clean tank is essential.

The X-Ray Tetra is a charming and engaging addition to any freshwater aquarium, adding both beauty and activity. With their manageable care requirements, striking appearance, and peaceful demeanor, these tetras are a fantastic choice for aquarists looking to create a harmonious and visually appealing community setup. Their schooling behavior and unique transparent look make the X-Ray Tetra a captivating presence in any tank.