Species · Paracheirodon innesi

Neon tetra: tank size, water and tank mates

Commercially bred stock prone to neon tetra disease; needs stable mature tank.

Adult size3 cm (1.2 in)
Minimum tank15 US gal
Temperature21–25 °C (70–77 °F)
pH5–7
Temperamentpeaceful
Keep in groups of8+
Swimsmid
Shrimp & snailsUsually safe

Check a tank with Neon tetra

Good tank mates for Neon tetra

These species share its temperature range and temperament, with no fin-nipping or predation risk under our rules. Still check your tank size and bioload in the checker.

African dwarf frog · Amano shrimp · Assassin snail · Black neon tetra · Black phantom tetra · Black ruby barb · Bleeding heart tetra · Bloodfin tetra · Bristlenose pleco · Bronze corydoras · Bumblebee goby · Cardinal tetra · Celestial pearl danio · Checkerboard barb · Cherry barb · Cherry shrimp · Clown killifish · Clown pleco · Colombian tetra · Congo tetra · CPO dwarf crayfish · Crystal red shrimp · Diamond tetra · Dwarf neon rainbowfish

Avoid with Neon tetra

African butterflyfish (predation) · Agassiz's dwarf cichlid (temperature) · Angelfish (predation) · Bala shark (predation) · Banded archerfish (predation) · Black ghost knifefish (predation) · Blue acara (predation) · Boeseman's rainbowfish (temperature) · Convict cichlid (temperature) · Demasoni cichlid (aggression) · Discus (temperature) · Firemouth cichlid (temperature) · German blue ram (temperature) · Jack Dempsey (predation) · Jewel cichlid (predation) · Moonlight gourami (temperature) · Oscar (predation) · Paradise fish (aggression)

Sources

Checked 2026-11-09 · confidence: high. These are cautious community guidelines, not guarantees. Not veterinary advice. Report an error.