X-Ray Tetra

The X-Ray Tetra, also known as the Golden Pristella Tetra, is one of the hardiest tetras available in the aquarium hobby. Named for its semi-transparent body that allows you to see its backbone, these adaptable fish feature a distinctive pattern with yellow, black, and white fins. They tolerate a wide range of water conditions including slightly brackish water and are excellent choices for beginner aquarists.

Care Requirements

Tank Setup

X-Ray Tetras are highly adaptable but appreciate planted tanks.

Essential Setup:

• 10+ gallons minimum
• Plants for security
• Open swimming space
• Can tolerate brackish water (low salinity)

Water Quality

• Temperature: 64-82°F (18-28°C) - very wide range
• pH: 6.0-8.0 - very adaptable
• Water Hardness: Moderate (5-20 dGH)
• Ammonia/Nitrite: 0 ppm
• Nitrate: <20 ppm

One of the most adaptable tetras available.

Feeding

Easy to feed omnivores:

• Accept any standard fish food
• Flakes, pellets, frozen
• Not picky eaters

Behavior & Compatibility

Very peaceful and hardy:

• School size: 6+ for best display
• Hardy: Excellent for beginners
• Brackish tolerant: Can live in low salinity

Good Tank Mates:

• Any peaceful community fish
• Mollies (can share brackish water)
• Guppies
• Platies

Special Adaptability

• Can live in brackish water up to 1.005 specific gravity
• Excellent starter fish for brackish tanks
• Very forgiving of beginner mistakes
• Good cycle fish

Breeding

Easy to breed:

• Fine-leaved plants or spawning mop
• Eggs hatch in 24-36 hours
• Feed fry infusoria