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[ARRIVED 5-MAR-2026] Black Medaka Rice 2-4cm

Description

Oryzias latipes (Japanese Ricefish)

Hardy, adaptable nano fish available in multiple colour varieties

Colour Variant: {{ product.selected_or_first_available_variant.title }}

Quick Facts

  • Size: ~3–4 cm
  • Tank size: 30L+ recommended
  • Difficulty: 🟒 Easy
  • Temperament: Peaceful
  • Best kept: Groups (6+)
  • Plant safe: Yes

Is this for you?

βœ”οΈ Good if:

  • You want a hardy and adaptable nano fish
  • You enjoy top to mid-water activity
  • You want a fish suitable for indoor or outdoor setups
  • You are happy to keep a proper group

❌ Avoid if:

  • You keep aggressive or large fish
  • You plan to keep just a few
  • You want a bottom-dwelling species
  • You have an open-top tank without cover (jump risk)

Why this fish?

Oryzias latipes, commonly known as Japanese Ricefish, is a highly adaptable nano species available in a wide range of colour varieties.

It is well-suited for both aquarium and outdoor setups, making it one of the most versatile small fish available.

Common mistakes

  • Keeping too few β†’ reduces activity and natural behaviour
  • Keeping in open-top tanks β†’ risk of jumping
  • Assuming all colour lines have identical robustness
  • Pairing with aggressive or highly active fish
  • Underestimating their need for group dynamics

Care made simple

  • Temperature: 18–28Β°C (very adaptable)
  • Diet: Flakes, micro pellets, frozen foods
  • Group size: 6+ recommended
  • Setup: Plants, open swimming space
  • Water: Clean, stable

Pair with

  • Quality flakes / micro pellets
  • Planted tanks or outdoor tubs
  • Peaceful nano fish
  • Shrimp setups
NTA Insight:
One of the most adaptable nano fish available. Colour varieties differ visually, but behaviour remains consistent β€” focus on group size and stable conditions.

FAQ

Are they good for beginners?

Yes. They are one of the most beginner-friendly nano fish available.

Can they live outdoors?

Yes. They are commonly kept in outdoor tubs or ponds in suitable climates.

Do different colours behave differently?

Behaviour is the same, though some selectively bred lines may be slightly less robust.

Where do they swim?

Mostly top to mid-water.

Do they jump?

Yes, so a lid or cover is recommended.

[ARRIVED 5-MAR-2026] Black Medaka Rice 2-4cm

Product form

Oryzias latipes (Japanese Ricefish) Hardy, adaptable nano fish available in multiple colour varieties Colour Variant: {{ product.selected_or_first_available_variant.title }} Quick Facts... Read more

Free pickup in our shop(s)

87 in stock

$12.00


All prices include GST
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    Description

    Oryzias latipes (Japanese Ricefish)

    Hardy, adaptable nano fish available in multiple colour varieties

    Colour Variant: {{ product.selected_or_first_available_variant.title }}

    Quick Facts

    • Size: ~3–4 cm
    • Tank size: 30L+ recommended
    • Difficulty: 🟒 Easy
    • Temperament: Peaceful
    • Best kept: Groups (6+)
    • Plant safe: Yes

    Is this for you?

    βœ”οΈ Good if:

    • You want a hardy and adaptable nano fish
    • You enjoy top to mid-water activity
    • You want a fish suitable for indoor or outdoor setups
    • You are happy to keep a proper group

    ❌ Avoid if:

    • You keep aggressive or large fish
    • You plan to keep just a few
    • You want a bottom-dwelling species
    • You have an open-top tank without cover (jump risk)

    Why this fish?

    Oryzias latipes, commonly known as Japanese Ricefish, is a highly adaptable nano species available in a wide range of colour varieties.

    It is well-suited for both aquarium and outdoor setups, making it one of the most versatile small fish available.

    Common mistakes

    • Keeping too few β†’ reduces activity and natural behaviour
    • Keeping in open-top tanks β†’ risk of jumping
    • Assuming all colour lines have identical robustness
    • Pairing with aggressive or highly active fish
    • Underestimating their need for group dynamics

    Care made simple

    • Temperature: 18–28Β°C (very adaptable)
    • Diet: Flakes, micro pellets, frozen foods
    • Group size: 6+ recommended
    • Setup: Plants, open swimming space
    • Water: Clean, stable

    Pair with

    • Quality flakes / micro pellets
    • Planted tanks or outdoor tubs
    • Peaceful nano fish
    • Shrimp setups
    NTA Insight:
    One of the most adaptable nano fish available. Colour varieties differ visually, but behaviour remains consistent β€” focus on group size and stable conditions.

    FAQ

    Are they good for beginners?

    Yes. They are one of the most beginner-friendly nano fish available.

    Can they live outdoors?

    Yes. They are commonly kept in outdoor tubs or ponds in suitable climates.

    Do different colours behave differently?

    Behaviour is the same, though some selectively bred lines may be slightly less robust.

    Where do they swim?

    Mostly top to mid-water.

    Do they jump?

    Yes, so a lid or cover is recommended.

    Live Arrival & Ordering FAQ

    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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