Melanotaenia Praecox 5cm

Description

Melanotaenia praecox

A dazzling dwarf rainbowfish featuring shimmering metallic blue scales, vibrant red fins, and constant schooling activity that's perfect for planted community aquariums.

Quick Facts

  • Scientific name: Melanotaenia praecox
  • Common name: Dwarf Neon Rainbowfish
  • Adult size: 5–6 cm
  • Tank size: 75L+ recommended
  • Difficulty: 🟒 Easy
  • Temperament: Peaceful
  • Best kept: Schools of 6 or more

Is this for you?

βœ”οΈ Perfect if:

  • You want an active and colourful schooling fish.
  • You keep a planted community aquarium.
  • You enjoy rainbowfish with brilliant metallic colours.
  • You want a hardy species suitable for beginners.

❌ Avoid if:

  • You keep aggressive or predatory fish.
  • You plan to keep only one or two individuals.
  • Your aquarium has poor water quality.
  • You want a fish for very small nano aquariums.

Why choose Melanotaenia praecox?

The Dwarf Neon Rainbowfish is one of the brightest freshwater fish available. Its metallic blue body reflects light with an almost electric glow, while its vivid red fins provide a stunning contrast that makes every school stand out in a planted aquarium.

Constantly active and always on display, these rainbowfish spend their day swimming together through the middle levels of the aquarium. Males regularly display to one another by intensifying their colours and extending their fins, adding movement and excitement without aggression.

Their peaceful temperament and hardy nature make them an outstanding choice for both beginner and experienced aquarists looking to add colour and activity to a community aquarium.

Common mistakes

  • Keeping too few fish.
  • Housing them with aggressive tank mates.
  • Allowing nitrate levels to become excessive.
  • Providing limited swimming space.
  • Feeding only one type of food.

Care made simple

  • Temperature: 24–28Β°C
  • pH: 6.5–7.8
  • Diet: Quality flakes, nano pellets, frozen foods, baby brine shrimp and live foods
  • Water: Clean, stable and well-filtered
  • Setup: Planted aquarium with open swimming areas and moderate water movement

Pairs perfectly with

  • Pseudomugil species
  • Threadfin Rainbowfish
  • Corydoras
  • Otocinclus
  • Peaceful tetras and rasboras
NTA Insight:
If you're looking for maximum colour with minimal fuss, the Dwarf Neon Rainbowfish is hard to beat. Their shimmering blue bodies almost glow under aquarium lighting, and when kept in a healthy school they create constant movement without ever becoming aggressive. They're one of our favourite rainbowfish for planted community aquariums.

FAQ

How many Dwarf Neon Rainbowfish should I keep?

They are schooling fish and should be kept in groups of at least six, although groups of 8–12 provide the best colour and most natural behaviour.

Can they live with shrimp?

Adult shrimp are generally safe, although very small shrimplets may occasionally be eaten. Dense mosses and plants provide excellent shelter for young shrimp.

Are they suitable for beginners?

Yes. They are hardy, peaceful and adaptable, making them one of the best rainbowfish species for beginner aquarists.

Can Melanotaenia praecox breed in home aquariums?

Yes. They readily scatter eggs amongst fine-leaved plants or spawning mops. The adults do not provide parental care, so eggs are usually collected or protected if raising fry.

What makes the Dwarf Neon Rainbowfish special?

Its brilliant metallic blue body, contrasting red fins and peaceful schooling behaviour make it one of the most colourful and rewarding rainbowfish available for freshwater community aquariums.

Melanotaenia Praecox 5cm

Product form

Out of stock,  

$35.00


All prices include GST
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    Description

    Melanotaenia praecox

    A dazzling dwarf rainbowfish featuring shimmering metallic blue scales, vibrant red fins, and constant schooling activity that's perfect for planted community aquariums.

    Quick Facts

    • Scientific name: Melanotaenia praecox
    • Common name: Dwarf Neon Rainbowfish
    • Adult size: 5–6 cm
    • Tank size: 75L+ recommended
    • Difficulty: 🟒 Easy
    • Temperament: Peaceful
    • Best kept: Schools of 6 or more

    Is this for you?

    βœ”οΈ Perfect if:

    • You want an active and colourful schooling fish.
    • You keep a planted community aquarium.
    • You enjoy rainbowfish with brilliant metallic colours.
    • You want a hardy species suitable for beginners.

    ❌ Avoid if:

    • You keep aggressive or predatory fish.
    • You plan to keep only one or two individuals.
    • Your aquarium has poor water quality.
    • You want a fish for very small nano aquariums.

    Why choose Melanotaenia praecox?

    The Dwarf Neon Rainbowfish is one of the brightest freshwater fish available. Its metallic blue body reflects light with an almost electric glow, while its vivid red fins provide a stunning contrast that makes every school stand out in a planted aquarium.

    Constantly active and always on display, these rainbowfish spend their day swimming together through the middle levels of the aquarium. Males regularly display to one another by intensifying their colours and extending their fins, adding movement and excitement without aggression.

    Their peaceful temperament and hardy nature make them an outstanding choice for both beginner and experienced aquarists looking to add colour and activity to a community aquarium.

    Common mistakes

    • Keeping too few fish.
    • Housing them with aggressive tank mates.
    • Allowing nitrate levels to become excessive.
    • Providing limited swimming space.
    • Feeding only one type of food.

    Care made simple

    • Temperature: 24–28Β°C
    • pH: 6.5–7.8
    • Diet: Quality flakes, nano pellets, frozen foods, baby brine shrimp and live foods
    • Water: Clean, stable and well-filtered
    • Setup: Planted aquarium with open swimming areas and moderate water movement

    Pairs perfectly with

    • Pseudomugil species
    • Threadfin Rainbowfish
    • Corydoras
    • Otocinclus
    • Peaceful tetras and rasboras
    NTA Insight:
    If you're looking for maximum colour with minimal fuss, the Dwarf Neon Rainbowfish is hard to beat. Their shimmering blue bodies almost glow under aquarium lighting, and when kept in a healthy school they create constant movement without ever becoming aggressive. They're one of our favourite rainbowfish for planted community aquariums.

    FAQ

    How many Dwarf Neon Rainbowfish should I keep?

    They are schooling fish and should be kept in groups of at least six, although groups of 8–12 provide the best colour and most natural behaviour.

    Can they live with shrimp?

    Adult shrimp are generally safe, although very small shrimplets may occasionally be eaten. Dense mosses and plants provide excellent shelter for young shrimp.

    Are they suitable for beginners?

    Yes. They are hardy, peaceful and adaptable, making them one of the best rainbowfish species for beginner aquarists.

    Can Melanotaenia praecox breed in home aquariums?

    Yes. They readily scatter eggs amongst fine-leaved plants or spawning mops. The adults do not provide parental care, so eggs are usually collected or protected if raising fry.

    What makes the Dwarf Neon Rainbowfish special?

    Its brilliant metallic blue body, contrasting red fins and peaceful schooling behaviour make it one of the most colourful and rewarding rainbowfish available for freshwater community aquariums.

    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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