๐Ÿ  Fish Compatibility Guide

Can Congo Tetra and Yellow Tang Live Together?

Updated September 23, 2026 ยท FishCare AI Editorial Team

โŒ Not Compatible โ€” Compatibility Score: 0/100
0/100 โ€” Not Compatible

Congo Tetra and Yellow Tang Compatibility Overview

Congo Tetra and Yellow Tang are generally not recommended to be housed together. One of these is a marine species and the other is not; they cannot share one aquarium. Their pH ranges do not meet: Congo Tetra wants 6.0โ€“7.5 and Yellow Tang wants 8.1โ€“8.4. Review the behavior and water details before deciding whether to attempt the pairing.

Compatibility factors for Congo Tetra and Yellow Tang
FactorCongo TetraYellow TangVerdict
Temperature73โ€“82ยฐF72โ€“82ยฐFโœ… 73โ€“82ยฐF
pH Range6.0โ€“7.58.1โ€“8.4โŒ No overlap
Temperamentpeacefulsemiโš ๏ธ Monitor
Adult Size3.1 in8.0 inโš ๏ธ 2.6ร— difference
Min. Group6+1+See below
Min. Tank Size100 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.

Incompatibility Reasons

One of these is a marine species and the other is not; they cannot share one aquarium.
Their pH ranges do not meet: Congo Tetra wants 6.0โ€“7.5 and Yellow Tang wants 8.1โ€“8.4.

Species Profiles

Congo Tetra โ€” Phenacogrammus interruptus

Congo Tetra and Yellow Tang 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

Yellow Tang โ€” Zebrasoma flavescens

Congo Tetra and Yellow Tang compatibility โ€” Yellow Tang

The Yellow Tang is a popular and vibrant fish suitable for beginners. With its bright yellow color and blue stripes, it adds a striking contrast to the aquarium. They are generally peaceful and can be kept in a community tank, though they may be nippy with certain tankmates. They require a well-maintained tank with plenty of swimming space and a varied diet.

โ†’ Full Yellow Tang care guide

Frequently Asked Questions

Can Congo Tetra live with Yellow Tang?

Generally not recommended. Congo Tetra and Yellow Tang are generally not recommended to be housed together. One of these is a marine species and the other is not; they cannot share one aquarium. Their pH ranges do not meet: Congo Tetra wants 6.0โ€“7.5 and Yellow Tang wants 8.1โ€“8.4. Review the behavior and water details before deciding whether to attempt the pairing.

What tank size do I need for Congo Tetra and Yellow Tang together?

A minimum of 100 gallons is recommended for keeping Congo Tetra and Yellow Tang together. A larger tank improves water stability and reduces territorial conflict.

What temperature suits both Congo Tetra and Yellow Tang?

73โ€“82ยฐF โ€” inside Congo Tetra's 73โ€“82ยฐF and Yellow Tang's 72โ€“82ยฐF.

Is a Congo Tetra aggressive toward a Yellow Tang?

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

Related Compatibility Guides

Tank Size for Congo Tetra and Yellow Tang

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

ScenarioTankWhen it applies
Minimum viable100 galOnly for the recommended minimum groups, mature filtration, and close monitoring.
Recommended community150 galAdds territory, swimming room, and a safer buffer for behavior.
Low-conflict setup220 galBest when keeping larger schools or reducing territorial pressure.