๐Ÿ  Fish Compatibility Guide

Can Pearl Danio and X Ray Tetra Live Together?

Updated September 23, 2026 ยท FishCare AI Editorial Team

โœ… Compatible โ€” Compatibility Score: 98/100
98/100 โ€” Compatible

Pearl Danio and X Ray Tetra Compatibility Overview

Pearl Danio and X Ray Tetra can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Both species are peaceful, and neither poses a major aggression risk to the other. A minimum 20-gallon tank is recommended to provide adequate territory and water volume for both species.

Compatibility factors for Pearl Danio and X Ray Tetra
FactorPearl DanioX Ray TetraVerdict
Temperature72โ€“79ยฐF72โ€“82ยฐFโœ… 72โ€“79ยฐF
pH Range6.5โ€“7.56.0โ€“7.5โœ… 6.5โ€“7.5
Temperamentpeacefulpeacefulโœ… Compatible
Adult Size2.5 in1.8 inโœ… Similar
Min. Group6+6+See below
Min. Tank Size20 gallons (for both species)โ€”

Compatibility Positives

A stable shared temperature range is available.
Their pH requirements overlap.
Temperament risk is relatively low when normal group sizes are maintained.

Caution Points

No major compatibility issues identified for this pair.

Species Profiles

Pearl Danio โ€” Danio albolineatus

Pearl Danio and X Ray Tetra compatibility โ€” Pearl Danio

The Pearl Danio is a popular freshwater fish known for its shimmering blue and white colors. It is a peaceful community fish that can be kept in a tank with other peaceful species. These fish are moderately active and do not require a large tank. They are suitable for beginners due to their hardiness and ease of care.

โ†’ Full Pearl Danio care guide

X Ray Tetra โ€” Pristella maxillaris

Pearl Danio and X Ray Tetra compatibility โ€” X Ray Tetra

The Pristella maxillaris, also known as the X-Ray Tetra, is a popular freshwater fish known for its unique appearance and peaceful nature. They are slender and iridescent, with a clear, almost x-ray-like body. They are best kept in groups of 6 or more and thrive in well-planted tanks with a moderate water flow.

โ†’ Full X Ray Tetra care guide

Frequently Asked Questions

Can Pearl Danio live with X Ray Tetra?

Yes, in a well-planned setup. Pearl Danio and X Ray Tetra can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Both species are peaceful, and neither poses a major aggression risk to the other. A minimum 20-gallon tank is recommended to provide adequate territory and water volume for both species.

What tank size do I need for Pearl Danio and X Ray Tetra together?

A minimum of 20 gallons is recommended for keeping Pearl Danio and X Ray Tetra together. A larger tank improves water stability and reduces territorial conflict.

What temperature suits both Pearl Danio and X Ray Tetra?

72โ€“79ยฐF โ€” inside Pearl Danio's 72โ€“79ยฐF and X Ray Tetra's 72โ€“82ยฐF.

Is a Pearl Danio aggressive toward a X Ray Tetra?

Pearl Danio is peaceful and X Ray Tetra is peaceful. No major aggression issues are expected between these species.

Related Compatibility Guides

Tank Size for Pearl Danio and X Ray Tetra

Use the scenario that matches the actual group sizes and temperament you plan to keep.

ScenarioTankWhen it applies
Minimum viable20 galOnly for the recommended minimum groups, mature filtration, and close monitoring.
Recommended community29 galAdds territory, swimming room, and a safer buffer for behavior.
Low-conflict setup55 galBest when keeping larger schools or reducing territorial pressure.