CheckMyFishTank

Green Neon Tetra care

Paracheirodon simulans · Freshwater · Intermediate level care

Green Neon Tetra, painted illustration

A tiny schooling tetra for small peaceful tanks.

Smallest tank10 gallons
Adult size1 inches
Temperature74 to 82°F
pH5 to 7
GroupA group of 8 or more
TemperamentPeaceful
SwimsMiddle of the tank
Lives3 to 5 years
Watch for: Their mouths are very small, so crush flakes and pick tiny foods.

Feeding

Twice a day. A small pinch they finish in about 2 minutes. Micro pellets, crushed flakes, frozen daphnia.

Good tank mates

Fish that pass every check with Green Neon Tetra in a 40 gallon tank: same water, overlapping temperature, nobody gets eaten and no bullies.

Black Neon TetraBlack Phantom TetraBlack Ruby BarbBlack Skirt TetraBoesemani RainbowfishBrilliant RasboraBristlenose PlecoBronze CorydorasCherry BarbDiamond Tetra

Do not mix with

  • Silver Dollar: Silver Dollar grows big enough to eat Green Neon Tetra.
  • Tinfoil Barb: Tinfoil Barb grows big enough to eat Green Neon Tetra.
  • White Cloud Mountain Minnow: White Cloud Mountain Minnow and Green Neon Tetra need different water temperatures.
  • Paradise Fish: Paradise Fish grows big enough to eat Green Neon Tetra.
  • Angelfish: Angelfish grows big enough to eat Green Neon Tetra.
  • Convict Cichlid: Convict Cichlid grows big enough to eat Green Neon Tetra.
  • Oscar: Oscar grows big enough to eat Green Neon Tetra.
  • Jack Dempsey: Jack Dempsey grows big enough to eat Green Neon Tetra.

Questions

What size tank does a Green Neon Tetra need?

At least 10 gallons for a group of 8. Adults grow to about 1 inches, so plan for the adult size, not the size at the store.

What temperature does a Green Neon Tetra like?

74 to 82 degrees Fahrenheit, with a pH of about 5 to 7. A steady temperature matters more than hitting one exact number.

How many Green Neon Tetra should I keep together?

Keep 8 or more. They feel safe in a group and show better color and behavior.

What do Green Neon Tetra eat?

Micro pellets, crushed flakes, frozen daphnia. Feed twice a day: a small pinch they finish in about 2 minutes.

Sources

Checked against these sources on 2026-11-10. When sources disagree we use the safer number.