๐Ÿ  Fish Compatibility Guide

Can Moonlight Gourami and Otocinclus Live Together?

Updated September 23, 2026 ยท FishCare AI Editorial Team

โœ… Compatible โ€” Compatibility Score: 77/100
77/100 โ€” Compatible

Moonlight Gourami and Otocinclus Compatibility Overview

Moonlight Gourami and Otocinclus 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 75-gallon tank is recommended to provide adequate territory and water volume for both species.

Compatibility factors for Moonlight Gourami and Otocinclus
FactorMoonlight GouramiOtocinclusVerdict
Temperature77โ€“86ยฐF72โ€“82ยฐFโœ… 77โ€“82ยฐF
pH Range6.0โ€“7.56.0โ€“7.5โœ… 6.0โ€“7.5
Temperamentpeacefulpeacefulโœ… Compatible
Adult Size5.9 in1.5 inโš ๏ธ 3.9ร— difference
Min. Group1+4+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

Moonlight Gourami โ€” Trichopodus microlepis

Moonlight Gourami and Otocinclus compatibility โ€” Moonlight Gourami

The Moonlight Gourami is a beautiful freshwater fish known for its silvery blue color and red eyes. It is a peaceful community fish suitable for beginners and can thrive in a well-maintained aquarium. These fish are sensitive to water quality and require a spacious tank with plenty of swimming space.

โ†’ Full Moonlight Gourami care guide

Otocinclus โ€” Otocinclus spp.

Moonlight Gourami and Otocinclus compatibility โ€” Otocinclus

Tiny algae-eating catfish that are peaceful with all species. Need established algae growth and biofilm; sensitive to ammonia.

โ†’ Full Otocinclus care guide

Frequently Asked Questions

Can Moonlight Gourami live with Otocinclus?

Yes, in a well-planned setup. Moonlight Gourami and Otocinclus 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 75-gallon tank is recommended to provide adequate territory and water volume for both species.

What tank size do I need for Moonlight Gourami and Otocinclus together?

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

What temperature suits both Moonlight Gourami and Otocinclus?

77โ€“82ยฐF โ€” inside Moonlight Gourami's 77โ€“86ยฐF and Otocinclus's 72โ€“82ยฐF.

Is a Moonlight Gourami aggressive toward a Otocinclus?

Moonlight Gourami is peaceful and Otocinclus is peaceful. No major aggression issues are expected between these species.

Related Compatibility Guides

Tank Size for Moonlight Gourami and Otocinclus

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.