๐Ÿ  Fish Compatibility Guide

Can Black Ruby Barb and Percula Clownfish Live Together?

Updated September 23, 2026 ยท FishCare AI Editorial Team

โŒ Not Compatible โ€” Compatibility Score: 0/100
0/100 โ€” Not Compatible

Black Ruby Barb and Percula Clownfish Compatibility Overview

Black Ruby Barb and Percula Clownfish are generally not recommended to be housed together. One of these is a marine species and the other is not; they cannot share one aquarium. Their pH ranges do not meet: Black Ruby Barb wants 5.5โ€“7.5 and Percula Clownfish wants 8.1โ€“8.4. Review the behavior and water details before deciding whether to attempt the pairing.

Compatibility factors for Black Ruby Barb and Percula Clownfish
FactorBlack Ruby BarbPercula ClownfishVerdict
Temperature68โ€“81ยฐF74โ€“82ยฐFโœ… 74โ€“81ยฐF
pH Range5.5โ€“7.58.1โ€“8.4โŒ No overlap
Temperamentpeacefulsemiโš ๏ธ Monitor
Adult Size2.2 in3.0 inโœ… Similar
Min. Group6+2+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.

Incompatibility Reasons

One of these is a marine species and the other is not; they cannot share one aquarium.
Their pH ranges do not meet: Black Ruby Barb wants 5.5โ€“7.5 and Percula Clownfish wants 8.1โ€“8.4.

Species Profiles

Black Ruby Barb โ€” Pethia nigrofasciata

Black Ruby Barb and Percula Clownfish compatibility โ€” Black Ruby Barb

The Black Ruby Barb is a vibrant, active species suitable for beginners. It requires a spacious tank and a school of its own kind to thrive. Its striking colors and lively nature make it a popular choice.

โ†’ Full Black Ruby Barb care guide

Percula Clownfish โ€” Amphiprion percula

Black Ruby Barb and Percula Clownfish compatibility โ€” Percula Clownfish

The Percula Clownfish, also known as the False Percula, is a popular beginner fish due to its hardiness and striking coloration. These fish are best kept in a saltwater tank with a minimum size of 30 gallons and compatible tankmates. They are peaceful, non-aggressive and do well in groups with other compatible species.

โ†’ Full Percula Clownfish care guide

Frequently Asked Questions

Can Black Ruby Barb live with Percula Clownfish?

Generally not recommended. Black Ruby Barb and Percula Clownfish are generally not recommended to be housed together. One of these is a marine species and the other is not; they cannot share one aquarium. Their pH ranges do not meet: Black Ruby Barb wants 5.5โ€“7.5 and Percula Clownfish wants 8.1โ€“8.4. Review the behavior and water details before deciding whether to attempt the pairing.

What tank size do I need for Black Ruby Barb and Percula Clownfish together?

A minimum of 20 gallons is recommended for keeping Black Ruby Barb and Percula Clownfish together. A larger tank improves water stability and reduces territorial conflict.

What temperature suits both Black Ruby Barb and Percula Clownfish?

74โ€“81ยฐF โ€” inside Black Ruby Barb's 68โ€“81ยฐF and Percula Clownfish's 74โ€“82ยฐF.

Is a Black Ruby Barb aggressive toward a Percula Clownfish?

Black Ruby Barb is peaceful and Percula Clownfish is semi. No major aggression issues are expected between these species.

Related Compatibility Guides

Tank Size for Black Ruby Barb and Percula Clownfish

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.