๐Ÿ  Fish Compatibility Guide

Can Molly and Three Spot Gourami Live Together?

Updated September 23, 2026 ยท FishCare AI Editorial Team

โœ… Compatible โ€” Compatibility Score: 86/100
86/100 โ€” Compatible

Molly and Three Spot Gourami Compatibility Overview

Molly and Three Spot Gourami can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Molly is peaceful and Three Spot Gourami is semi, so give them room and cover rather than assuming they will ignore each other. A minimum 75-gallon tank is recommended to provide adequate territory and water volume for both species.

Compatibility factors for Molly and Three Spot Gourami
FactorMollyThree Spot GouramiVerdict
Temperature72โ€“82ยฐF75โ€“86ยฐFโœ… 75โ€“82ยฐF
pH Range7.5โ€“8.55.5โ€“8.5โœ… 7.5โ€“8.5
Temperamentpeacefulsemiโš ๏ธ Monitor
Adult Size4 in5.9 inโœ… Similar
Min. Group3+1+See below
Min. Tank Size75 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

Molly โ€” Poecilia sphenops

Molly and Three Spot Gourami compatibility โ€” Molly

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

โ†’ Full Molly care guide

Three Spot Gourami โ€” Trichopodus trichopterus

Molly and Three Spot Gourami compatibility โ€” Three Spot Gourami

The Three Spot Gourami is a peaceful and attractive addition to freshwater tanks. They are known for their vibrant coloration and peaceful demeanor. With their flowing tails and distinctive body spots, they add visual interest to the aquarium. Providing a well-planted tank with hiding spots is crucial for their well-being.

โ†’ Full Three Spot Gourami care guide

Frequently Asked Questions

Can Molly live with Three Spot Gourami?

Yes, in a well-planned setup. Molly and Three Spot Gourami can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Molly is peaceful and Three Spot Gourami is semi, so give them room and cover rather than assuming they will ignore each other. A minimum 75-gallon tank is recommended to provide adequate territory and water volume for both species.

What tank size do I need for Molly and Three Spot Gourami together?

A minimum of 75 gallons is recommended for keeping Molly and Three Spot Gourami together. A larger tank improves water stability and reduces territorial conflict.

What temperature suits both Molly and Three Spot Gourami?

75โ€“82ยฐF โ€” inside Molly's 72โ€“82ยฐF and Three Spot Gourami's 75โ€“86ยฐF.

Is a Molly aggressive toward a Three Spot Gourami?

Molly is peaceful and Three Spot Gourami is semi. No major aggression issues are expected between these species.

Related Compatibility Guides

Tank Size for Molly and Three Spot Gourami

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

ScenarioTankWhen it applies
Minimum viable75 galOnly for the recommended minimum groups, mature filtration, and close monitoring.
Recommended community125 galAdds territory, swimming room, and a safer buffer for behavior.
Low-conflict setup150 galBest when keeping larger schools or reducing territorial pressure.