๐Ÿ  Fish Compatibility Guide

Can Congo Tetra and Serpae Tetra Live Together?

Updated September 23, 2026 ยท FishCare AI Editorial Team

โœ… Compatible โ€” Compatibility Score: 89/100
89/100 โ€” Compatible

Congo Tetra and Serpae Tetra Compatibility Overview

Congo Tetra and Serpae Tetra can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Congo Tetra is peaceful and Serpae Tetra is semi, so give them room and cover rather than assuming they will ignore each other. A minimum 55-gallon tank is recommended to provide adequate territory and water volume for both species.

Compatibility factors for Congo Tetra and Serpae Tetra
FactorCongo TetraSerpae TetraVerdict
Temperature73โ€“82ยฐF68โ€“82ยฐFโœ… 73โ€“82ยฐF
pH Range6.0โ€“7.55.0โ€“7.5โœ… 6.0โ€“7.5
Temperamentpeacefulsemiโš ๏ธ Monitor
Adult Size3.1 in1.6 inโœ… Similar
Min. Group6+10+See below
Min. Tank Size55 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

Congo Tetra โ€” Phenacogrammus interruptus

Congo Tetra and Serpae Tetra compatibility โ€” Congo Tetra

The Congo Tetra is a vibrant and active fish that thrives in a well-maintained freshwater aquarium. With its striking coloration and peaceful nature, it's a great addition to any community tank. This species is best kept in groups and requires a spacious tank with plenty of swimming space.

โ†’ Full Congo Tetra care guide

Serpae Tetra โ€” Hyphessobrycon eques

Congo Tetra and Serpae Tetra compatibility โ€” Serpae Tetra

The Serpae Tetra is a popular freshwater fish known for its vibrant coloration and peaceful nature. It is well-suited for community tanks and can be a great addition to any aquarium. With its moderate activity level and easy care requirements, it is a suitable choice for beginners and experienced aquarists alike.

โ†’ Full Serpae Tetra care guide

Frequently Asked Questions

Can Congo Tetra live with Serpae Tetra?

Yes, in a well-planned setup. Congo Tetra and Serpae Tetra can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Congo Tetra is peaceful and Serpae Tetra is semi, so give them room and cover rather than assuming they will ignore each 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 Congo Tetra and Serpae Tetra together?

A minimum of 55 gallons is recommended for keeping Congo Tetra and Serpae Tetra together. A larger tank improves water stability and reduces territorial conflict.

What temperature suits both Congo Tetra and Serpae Tetra?

73โ€“82ยฐF โ€” inside Congo Tetra's 73โ€“82ยฐF and Serpae Tetra's 68โ€“82ยฐF.

Is a Congo Tetra aggressive toward a Serpae Tetra?

Congo Tetra is peaceful and Serpae Tetra is semi. No major aggression issues are expected between these species.

Related Compatibility Guides

Tank Size for Congo Tetra and Serpae Tetra

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.