๐Ÿ  Fish Compatibility Guide

Can Chili Rasbora and X Ray Tetra Live Together?

Updated September 23, 2026 ยท FishCare AI Editorial Team

โœ… Compatible โ€” Compatibility Score: 85/100
85/100 โ€” Compatible

Chili Rasbora and X Ray Tetra Compatibility Overview

Chili Rasbora 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 Chili Rasbora and X Ray Tetra
FactorChili RasboraX Ray TetraVerdict
Temperature68โ€“82ยฐF72โ€“82ยฐFโœ… 72โ€“82ยฐF
pH Range4.0โ€“7.06.0โ€“7.5โœ… 6.0โ€“7.0
Temperamentpeacefulpeacefulโœ… Compatible
Adult Size0.8 in1.8 inโš ๏ธ 2.2ร— difference
Min. Group8+6+See below
Min. Tank Size20 gallons (for both species)โ€”

Compatibility Positives

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

Caution Points

Their pH ranges overlap only partly, so aim for the shared band and keep it steady.

Species Profiles

Chili Rasbora โ€” Boraras brigittae

Chili Rasbora and X Ray Tetra compatibility โ€” Chili Rasbora

Vivid red nano fish from Borneo blackwater habitats. Extremely small โ€” only safe with fish too small to swallow them.

โ†’ Full Chili Rasbora care guide

X Ray Tetra โ€” Pristella maxillaris

Chili Rasbora 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 Chili Rasbora live with X Ray Tetra?

Yes, in a well-planned setup. Chili Rasbora 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 Chili Rasbora and X Ray Tetra together?

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

What temperature suits both Chili Rasbora and X Ray Tetra?

72โ€“82ยฐF โ€” inside Chili Rasbora's 68โ€“82ยฐF and X Ray Tetra's 72โ€“82ยฐF.

Is a Chili Rasbora aggressive toward a X Ray Tetra?

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

Related Compatibility Guides

Tank Size for Chili Rasbora 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.