๐Ÿ  Fish Compatibility Guide

Can Dwarf Gourami and Otocinclus Live Together?

Updated September 23, 2026 ยท FishCare AI Editorial Team

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

Dwarf Gourami and Otocinclus Compatibility Overview

Dwarf Gourami and Otocinclus can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Dwarf Gourami is semi and Otocinclus is peaceful, so give them room and cover rather than assuming they will ignore each other. A minimum 40-gallon tank is recommended to provide adequate territory and water volume for both species.

Compatibility factors for Dwarf Gourami and Otocinclus
FactorDwarf GouramiOtocinclusVerdict
Temperature72โ€“82ยฐF72โ€“82ยฐFโœ… 72โ€“82ยฐF
pH Range6.0โ€“7.56.0โ€“7.5โœ… 6.0โ€“7.5
Temperamentsemipeacefulโš ๏ธ Monitor
Adult Size3.5 in1.5 inโš ๏ธ 2.3ร— difference
Min. Group1+4+See below
Min. Tank Size40 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

Dwarf Gourami โ€” Trichogaster lalius

Dwarf Gourami and Otocinclus compatibility โ€” Dwarf Gourami

Colourful labyrinth fish that is generally peaceful but can be territorial toward similar species. Susceptible to Dwarf Gourami Iridovirus.

โ†’ Full Dwarf Gourami care guide

Otocinclus โ€” Otocinclus spp.

Dwarf 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 Dwarf Gourami live with Otocinclus?

Yes, in a well-planned setup. Dwarf Gourami and Otocinclus can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Dwarf Gourami is semi and Otocinclus is peaceful, so give them room and cover rather than assuming they will ignore each other. A minimum 40-gallon tank is recommended to provide adequate territory and water volume for both species.

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

A minimum of 40 gallons is recommended for keeping Dwarf Gourami and Otocinclus together. A larger tank improves water stability and reduces territorial conflict.

What temperature suits both Dwarf Gourami and Otocinclus?

72โ€“82ยฐF โ€” inside Dwarf Gourami's 72โ€“82ยฐF and Otocinclus's 72โ€“82ยฐF.

Is a Dwarf Gourami aggressive toward a Otocinclus?

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

Related Compatibility Guides

Tank Size for Dwarf Gourami and Otocinclus

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

ScenarioTankWhen it applies
Minimum viable40 galOnly for the recommended minimum groups, mature filtration, and close monitoring.
Recommended community55 galAdds territory, swimming room, and a safer buffer for behavior.
Low-conflict setup75 galBest when keeping larger schools or reducing territorial pressure.