๐Ÿ  Fish Compatibility Guide

Can Congo Tetra and Neon Tetra Live Together?

Updated September 23, 2026 ยท FishCare AI Editorial Team

โœ… Compatible โ€” Compatibility Score: 88/100
88/100 โ€” Compatible

Can Congo Tetra and Neon Tetra Live Together?

Can Congo Tetra and Neon Tetra Live Together? Only with caution and a purpose-built setup. The two schooling species can overlap in water parameters, but Congo Tetras' size and activity can unsettle small Neon Tetras.

Compatibility factors for Congo Tetra and Neon Tetra
FactorCongo TetraNeon TetraVerdict
Temperature73โ€“82ยฐF72โ€“80ยฐFโœ… 73โ€“80ยฐF
pH Range6.0โ€“7.56.0โ€“7.5โœ… 6.0โ€“7.5
Temperamentpeacefulpeacefulโœ… Compatible
Adult Size3.1 in1.5 inโš ๏ธ 2.1ร— difference
Min. Group6+6+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.

How to Reduce the Risk

The two schooling species can overlap in water parameters, but Congo Tetras' size and activity can unsettle small Neon Tetras.

A Safer Plan for Congo Tetra and Neon Tetra

Use a long planted tank, full schools of both species, and observe feeding competition.

Species Profiles

Congo Tetra โ€” Phenacogrammus interruptus

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

Neon Tetra โ€” Paracheirodon innesi

Iconic schooling fish with vivid electric-blue and red stripes. Hardy in captivity; suitable for most peaceful community setups.

โ†’ Full Neon Tetra care guide

Frequently Asked Questions

Can Congo Tetra live with Neon Tetra?

Sometimes, but treat it as a cautious pairing that needs a purpose-built setup rather than a default recommendation.

What is the main risk with Congo Tetra and Neon Tetra?

The two schooling species can overlap in water parameters, but Congo Tetras' size and activity can unsettle small Neon Tetras.

What setup reduces conflict between Congo Tetra and Neon Tetra?

Use a long planted tank, full schools of both species, and observe feeding competition.

When should I avoid keeping Congo Tetra and Neon Tetra together?

Avoid the pairing in a small tank, with incomplete social groups, or when either species shows persistent stress or aggression.

Related Compatibility Guides

Tank size scenarios

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.