Green Neon Tetra 3-5cm

Description

Green Neon Tetra (Paracheirodon simulans)

Small, peaceful and brilliantly iridescent, the Green Neon Tetra is one of the most underrated schooling fish in the aquarium hobby. With its vivid emerald-blue stripe and delicate body, this Amazonian species creates a mesmerising display when kept in large schools within a heavily planted aquarium.

Quick Facts

  • Scientific name: Paracheirodon simulans
  • Common name: Green Neon Tetra
  • Current size: Approximately 2 cm
  • Adult size: Approximately 2.5–3 cm
  • Tank size: 40L+ recommended
  • Difficulty: 🟢 Easy to Moderate
  • Temperament: Peaceful schooling fish
  • Minimum school: 10+ recommended

Is this for you?

āœ”ļø Perfect if:

  • You enjoy nano aquariums and aquascaping.
  • You're looking for a peaceful schooling species.
  • You love planted aquariums with natural-looking fish.
  • You want a smaller alternative to the classic Neon Tetra.

āŒ Avoid if:

  • You plan to keep them with large predatory fish.
  • You only intend to keep one or two fish.
  • Your aquarium has unstable water quality.
  • You prefer active fish that occupy all water levels.

Why choose Green Neon Tetras?

Often overshadowed by their famous Neon Tetra cousins, Green Neon Tetras possess a unique beauty all their own. Their slender bodies feature an intense iridescent blue-green stripe that glows brilliantly under quality aquarium lighting, while subtle green hues give the species its common name.

Native to the blackwater streams of the Rio Negro basin in South America, these fish thrive in densely planted aquariums with gentle water movement. When kept in large schools, they display tight, synchronised swimming behaviour that creates a stunning natural spectacle.

Their peaceful temperament makes them an excellent choice for community aquariums containing other small fish, shrimp and gentle bottom dwellers.

Benefits

  • Brilliant emerald-blue iridescent stripe
  • Ideal for nano and planted aquariums
  • Peaceful community fish
  • Excellent schooling behaviour
  • Suitable with shrimp and other nano species
  • Adds constant movement and colour to planted displays

Care made simple

  • Temperature: 24–28°C
  • pH: 5.0–7.0
  • Diet: Quality micro pellets, crushed flakes, frozen cyclops, baby brine shrimp and other small live foods
  • Water: Soft, clean, stable water with gentle filtration
  • Setup: Heavily planted aquarium with driftwood, leaf litter and subdued lighting
  • Always keep in groups of at least 10, with larger schools producing more natural behaviour and greater confidence.
  • Regular small water changes and stable water parameters are essential for long-term success.

Pairs perfectly with

  • Ember Tetras
  • Chili Rasboras
  • Pygmy Corydoras
  • Otocinclus
  • Cherry Shrimp and Caridina Shrimp
NTA Insight:
Green Neon Tetras often look understated in brightly lit dealer tanks, but once settled into a mature planted aquarium with darker surroundings, their metallic green-blue stripe becomes remarkably vibrant. Keeping them in schools of 20 or more creates one of the most impressive natural schooling displays available for nano aquariums.

FAQ

Are Green Neon Tetras the same as Neon Tetras?

No. Although closely related, Green Neon Tetras (Paracheirodon simulans) remain smaller than Neon Tetras and display a more prominent emerald-green iridescent stripe. They also tend to prefer slightly warmer, softer water.

How many should I keep?

We recommend a minimum group of 10 fish, although schools of 20 or more display the most natural behaviour and create a far more impressive visual display.

Can they live with shrimp?

Yes. Green Neon Tetras are generally shrimp-safe with adult shrimp and coexist well with Cherry Shrimp, Amano Shrimp and many Caridina species. Very small baby shrimp may occasionally be eaten.

Are they suitable for beginners?

Yes. Once established in a mature aquarium with stable water conditions, Green Neon Tetras are hardy and rewarding fish for beginners and experienced aquarists alike.

How long do Green Neon Tetras live?

With excellent water quality and proper care, Green Neon Tetras commonly live between 4 and 6 years in the home aquarium.

Green Neon Tetra 3-5cm

Product form
Free pickup in our shop(s)
šŸ“ In-Store Locations: TT31
šŸ“¦ Arrival Date: 26 June 2026

 

$8.00


All prices include GST
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    Description

    Green Neon Tetra (Paracheirodon simulans)

    Small, peaceful and brilliantly iridescent, the Green Neon Tetra is one of the most underrated schooling fish in the aquarium hobby. With its vivid emerald-blue stripe and delicate body, this Amazonian species creates a mesmerising display when kept in large schools within a heavily planted aquarium.

    Quick Facts

    • Scientific name: Paracheirodon simulans
    • Common name: Green Neon Tetra
    • Current size: Approximately 2 cm
    • Adult size: Approximately 2.5–3 cm
    • Tank size: 40L+ recommended
    • Difficulty: 🟢 Easy to Moderate
    • Temperament: Peaceful schooling fish
    • Minimum school: 10+ recommended

    Is this for you?

    āœ”ļø Perfect if:

    • You enjoy nano aquariums and aquascaping.
    • You're looking for a peaceful schooling species.
    • You love planted aquariums with natural-looking fish.
    • You want a smaller alternative to the classic Neon Tetra.

    āŒ Avoid if:

    • You plan to keep them with large predatory fish.
    • You only intend to keep one or two fish.
    • Your aquarium has unstable water quality.
    • You prefer active fish that occupy all water levels.

    Why choose Green Neon Tetras?

    Often overshadowed by their famous Neon Tetra cousins, Green Neon Tetras possess a unique beauty all their own. Their slender bodies feature an intense iridescent blue-green stripe that glows brilliantly under quality aquarium lighting, while subtle green hues give the species its common name.

    Native to the blackwater streams of the Rio Negro basin in South America, these fish thrive in densely planted aquariums with gentle water movement. When kept in large schools, they display tight, synchronised swimming behaviour that creates a stunning natural spectacle.

    Their peaceful temperament makes them an excellent choice for community aquariums containing other small fish, shrimp and gentle bottom dwellers.

    Benefits

    • Brilliant emerald-blue iridescent stripe
    • Ideal for nano and planted aquariums
    • Peaceful community fish
    • Excellent schooling behaviour
    • Suitable with shrimp and other nano species
    • Adds constant movement and colour to planted displays

    Care made simple

    • Temperature: 24–28°C
    • pH: 5.0–7.0
    • Diet: Quality micro pellets, crushed flakes, frozen cyclops, baby brine shrimp and other small live foods
    • Water: Soft, clean, stable water with gentle filtration
    • Setup: Heavily planted aquarium with driftwood, leaf litter and subdued lighting
    • Always keep in groups of at least 10, with larger schools producing more natural behaviour and greater confidence.
    • Regular small water changes and stable water parameters are essential for long-term success.

    Pairs perfectly with

    • Ember Tetras
    • Chili Rasboras
    • Pygmy Corydoras
    • Otocinclus
    • Cherry Shrimp and Caridina Shrimp
    NTA Insight:
    Green Neon Tetras often look understated in brightly lit dealer tanks, but once settled into a mature planted aquarium with darker surroundings, their metallic green-blue stripe becomes remarkably vibrant. Keeping them in schools of 20 or more creates one of the most impressive natural schooling displays available for nano aquariums.

    FAQ

    Are Green Neon Tetras the same as Neon Tetras?

    No. Although closely related, Green Neon Tetras (Paracheirodon simulans) remain smaller than Neon Tetras and display a more prominent emerald-green iridescent stripe. They also tend to prefer slightly warmer, softer water.

    How many should I keep?

    We recommend a minimum group of 10 fish, although schools of 20 or more display the most natural behaviour and create a far more impressive visual display.

    Can they live with shrimp?

    Yes. Green Neon Tetras are generally shrimp-safe with adult shrimp and coexist well with Cherry Shrimp, Amano Shrimp and many Caridina species. Very small baby shrimp may occasionally be eaten.

    Are they suitable for beginners?

    Yes. Once established in a mature aquarium with stable water conditions, Green Neon Tetras are hardy and rewarding fish for beginners and experienced aquarists alike.

    How long do Green Neon Tetras live?

    With excellent water quality and proper care, Green Neon Tetras commonly live between 4 and 6 years in the home aquarium.

    Live Arrival & Ordering FAQ

    Why do livestock prices sometimes change?

    Unlike manufactured products, fish and shrimp continue to grow and develop over time. Their value changes as they increase in size, develop colour, or become breeding pairs.

    Our prices are based on the current size, quality and availability of each specimen. While pricing often remains stable for around 3–4 months, it may be updated at any time to reflect these changes.

    We always aim to offer healthy, high-quality livestock at fair and competitive prices.

    Do you offer a live arrival guarantee?

    Yes. All livestock is covered by our Live Arrival Guarantee.

    In the rare event of DOA, please contact us promptly with clear photos of the livestock in the original unopened bag.

    Please review our full DOA and store policies before purchase.

    Can you ship to all states in Australia?

    No. Due to state restrictions, we cannot ship livestock or live plants to WA and TAS.

    What should I check before ordering?

    Before placing an order, make sure:

    • Your tank is fully cycled and stable
    • Your aquarium has enough space for the species
    • Your current livestock are compatible in temperament, size, and requirements
    • Your water parameters, habitat, and temperature suit the species
    • You are not adding too many fish at once
    What should I expect when my fish arrives?

    It is normal for fish, shrimp, or snails to look pale, stressed, or less active after shipping.

    This is temporary. Most livestock will settle and regain colour within a few days.

    How long does it take for fish to settle in?

    Most livestock will take 3–7 days to fully adjust to their new environment.

    Should I feed my fish immediately after arrival?

    No. We recommend waiting 24 hours before feeding to allow them to settle.

    If you already have fish in your tank, feeding them before introducing new arrivals can help reduce stress.

    Why do fish sometimes struggle after being added to a tank?

    In most cases, issues are caused by tank conditions, not shipping.

    • Uncycled or unstable tanks
    • Poor water parameters
    • Overstocking
    • Unsuitable tank mates
    What is Nano Tanks Australia’s main tip for new livestock?

    Most livestock losses happen in immature or unstable tanks, not during shipping.

    If your setup is not fully established, the risk to new arrivals is significantly higher.

    Not sure if this fish is right for your setup?

    If you are unsure whether this species suits your setup, contact us before ordering and we’ll help point you in the right direction.

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