Neon tetra care

Water temperature
72–79°F
Neon tetras do best at 72–79°F and pH 6–7. Plan on 10 gallons or more. Good tank mates include bettas, guppies, tiger barbs.
Small enough to fit in an angelfish's mouth. Keep six or more.
Paracheirodon innesi
- pH
- 6–7
- Minimum tank
- 10 gal
- Adult size
- 1.5 in
- Temperament
- Peaceful
- Group
- Groups of 6+
- Lifespan
- 5–8 years
- Swims at
- Middle
- Diet
- Omnivore
Best tank mates
BettaYes
GuppyYes
Tiger barbYes
Harlequin rasboraYes
Zebra danioYes
GloFish tetraYes
Cardinal tetraYes
CorydorasYes
Honey gouramiYes
Sparkling gouramiYes
Kuhli loachYes
OtocinclusYes
Full neon tetra tank mate chart: 51 yes, 27 with care, 20 no
Neon tetra water compared
Fish to keep away from neon tetras
- Axolotl Axolotls are coldwater animals (60–66°F); neon tetras need 72–79°F. No temperature suits both.
- Pea puffer Pea puffers are aggressive and will bully peaceful neon tetras.
- Goldfish Goldfish are coldwater animals (60–74°F); neon tetras need 72–79°F. They overlap only at 72–74°F, the edge of both ranges.
- Angelfish An adult angelfish eats fish that fit in its mouth, and at 1.5 inches neon tetras do.
- Pictus catfish An adult pictus catfish eats fish that fit in its mouth, and at 1.5 inches neon tetras do.
- Oscar An adult oscar eats fish that fit in its mouth, and at 1.5 inches neon tetras do.
- Bichir An adult bichir eats fish that fit in its mouth, and at 1.5 inches neon tetras do.
- Elephant nose fish At 9 inches an elephant nose fish can swallow a 1.5-inch neon tetra whole.
More tetras and characins
Ember tetra73–84°F
Congo tetra73–82°F
Rummy nose tetra75–84°F
Cardinal tetra76–84°F
Black skirt tetra70–80°F
Serpae tetra72–79°F
Silver dollar75–82°F
Glowlight tetra74–80°F
Questions
What temperature do neon tetras need?
72–79 °F. Keep it steady with a heater.
What size tank does a neon tetra need?
At least 10 gallons for a group. Adults reach about 1.5 inches.
How many neon tetras should I keep?
Groups of 6+. They are schooling fish and stress when kept alone.
What fish can live with neon tetras?
Bettas, Guppies, Tiger barbs, Harlequin rasboras, Zebra danios, Glofish, among others. See the full list of 51 good matches.