Neon Tetra

Paracheirodon innesi

Neon Tetra is a peaceful middle swimmer.

PeacefulMiddle swimmerBeginner – Intermediate

Save this fish or add it directly to one of your aquariums.

Quick facts

Adult size
3–4 cm (1.2–1.6 in)
Aquarium size
54 L or larger / ≥ 60 cm (≥ 23.6 in) minimum length
Care level
Beginner – Intermediate
Temperament
Peaceful
Swimming zone
Middle swimmer
Temperature
21–26 °C
pH
5–7
GH
1–10 dGH
KH
0–6 dKH
Diet
Omnivore
Lifespan
5–8 years

Care requirements

Care level: Beginner – Intermediate.

Lifespan: 5–8 years.

Aquarium size and space needs

Minimum aquarium size: 54 L or larger / ≥ 60 cm (≥ 23.6 in) minimum length. Plan the layout and stocking within that limit.

Water parameters

Suitable water: temperature 21–26 °C, pH 5–7, GH 1–10 dGH, KH 0–6 dKH.

Temperament and compatibility

Neon Tetra is peaceful and suits calm community fish.

Plant safe
Yes
Shrimp safe
Yes
Snail safe
Yes
Community safe
Yes
Beginner friendly
Yes
Aquascape fit
Yes

Swimming zone and behavior

This fish uses the middle part of the aquarium, so leave enough open swimming space for movement and feeding.

Feeding

As an omnivore, Neon Tetra should receive a varied diet rather than one repeated food type.

Offer fine micro-granules, crushed flakes and small live or frozen foods such as Artemia, Cyclops and Daphnia.

Natural habitat and origin

Origin: Northern Amazon basin.

Natural habitat: Shaded forest streams and tributaries with soft water, submerged wood, leaf litter and areas of gentle current.

Breeding notes

Breeding difficulty: Advanced.

Adults reach around 3–4 cm. Long-term success depends more on stable water and group size than on chasing an extremely low pH.

Before adding this fish

  • Plan for an aquarium of 54 L or larger / ≥ 60 cm (≥ 23.6 in) minimum length.
  • Avoid aggressive or highly competitive fish.
  • Offer a varied diet that matches this species.

Important notes

  • Do not keep in very small groups.
  • Avoid newly cycled or unstable aquariums.
  • Large or aggressive tank mates may treat the fish as prey.

Similar fish profiles

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FAQ

How large does Neon Tetra get?

Neon Tetra reaches 3–4 cm (1.2–1.6 in).

What aquarium size does Neon Tetra need?

Use an aquarium of at least 54 L or larger / ≥ 60 cm (≥ 23.6 in) minimum length.

Is Neon Tetra peaceful?

Yes. Neon Tetra is recorded as peaceful and is best planned with calm community fish that do not harass it or dominate the feeding area.

What temperature is suitable for Neon Tetra?

Keep it between 21 to 26 °C.

Is Neon Tetra beginner friendly?

Neon Tetra can be a beginner-friendly choice when the aquarium is mature, stable, and matched to its adult size.

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