๐Ÿ  Fish Compatibility Guide

Can Cherry Barb and Molly Live Together?

Updated September 23, 2026 ยท FishCare AI Editorial Team

โœ… Compatible โ€” Compatibility Score: 83/100
83/100 โ€” Compatible

Cherry Barb and Molly Compatibility Overview

Cherry Barb and Molly 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 55-gallon tank is recommended to provide adequate territory and water volume for both species.

Compatibility factors for Cherry Barb and Molly
FactorCherry BarbMollyVerdict
Temperature73โ€“81ยฐF72โ€“82ยฐFโœ… 73โ€“81ยฐF
pH Range6.0โ€“8.07.5โ€“8.5โš ๏ธ 7.5โ€“8.0 (narrow)
Temperamentpeacefulpeacefulโœ… Compatible
Adult Size2 in4 inโš ๏ธ 2.0ร— difference
Min. Group6+3+See below
Min. Tank Size55 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

Cherry Barb โ€” Puntius titteya

Cherry Barb and Molly compatibility โ€” Cherry Barb

Unlike most barbs, cherry barbs are peaceful schooling fish safe with bettas and nano species. Males turn vivid red when in breeding condition.

โ†’ Full Cherry Barb care guide

Molly โ€” Poecilia sphenops

Cherry Barb and Molly compatibility โ€” Molly

Hardy livebearers that prefer alkaline, hard water โ€” sometimes slightly brackish. Prolific breeders; peaceful community fish.

โ†’ Full Molly care guide

Frequently Asked Questions

Can Cherry Barb live with Molly?

Yes, in a well-planned setup. Cherry Barb and Molly 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 55-gallon tank is recommended to provide adequate territory and water volume for both species.

What tank size do I need for Cherry Barb and Molly together?

A minimum of 55 gallons is recommended for keeping Cherry Barb and Molly together. A larger tank improves water stability and reduces territorial conflict.

What temperature suits both Cherry Barb and Molly?

73โ€“81ยฐF โ€” inside Cherry Barb's 73โ€“81ยฐF and Molly's 72โ€“82ยฐF.

Is a Cherry Barb aggressive toward a Molly?

Cherry Barb is peaceful and Molly is peaceful. No major aggression issues are expected between these species.

Related Compatibility Guides

Tank Size for Cherry Barb and Molly

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

ScenarioTankWhen it applies
Minimum viable55 galOnly for the recommended minimum groups, mature filtration, and close monitoring.
Recommended community75 galAdds territory, swimming room, and a safer buffer for behavior.
Low-conflict setup125 galBest when keeping larger schools or reducing territorial pressure.