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[ARRIVED 26-MAR-2026] Corydoras trilineatus Three stripe Corydoras 3-5cm

Description

Corydoras trilineatus (False Julii Corydoras)

Hardy, patterned cory with classic behaviour for community aquariums

Quick Facts

  • Size: ~5–6 cm
  • Tank size: 50L+ recommended
  • Difficulty: 🟒 Easy
  • Temperament: Peaceful
  • Best kept: Groups (5–6+)
  • Plant safe: Yes

Is this for you?

βœ”οΈ Good if:

  • You want a hardy, beginner-friendly Corydoras
  • You like detailed, patterned fish
  • You have a peaceful community tank
  • You’re happy to keep a proper group

❌ Avoid if:

  • You want a fish that survives on leftovers
  • You plan to keep just one
  • You use sharp gravel substrate
  • You keep aggressive or highly competitive fish

Why this fish?

Corydoras trilineatus is a popular patterned cory known for its maze-like markings across the body.

It is often mistaken for the rarer Corydoras julii, but offers the same peaceful behaviour and ease of care, making it a great choice for community tanks.

Common mistakes

  • Confusing it with Corydoras julii (this is more commonly available)
  • Keeping them alone instead of in groups
  • Assuming they survive on leftover food
  • Using sharp substrate β†’ damages barbels
  • Overstocking the bottom of the tank

Care made simple

  • Temperature: 22–26Β°C
  • Diet: Sinking pellets, wafers, frozen foods
  • Group size: 5–6+ recommended
  • Substrate: Soft sand preferred
  • Water: Clean and stable

Pair with

  • Sinking pellets / bottom feeder food
  • Fine sand substrate
  • Driftwood and plants
  • Peaceful community fish
NTA Insight:
Most fish sold as β€œJulii Cory” are actually Corydoras trilineatus. The care is the same β€” focus on group size, proper feeding, and stable conditions.

FAQ

Is this the same as Julii Corydoras?

Not exactly. Corydoras trilineatus is often sold as β€œJulii Cory”, but true julii are less common in the hobby.

Are they good for beginners?

Yes. They are hardy and suitable for beginners with a properly set up tank.

Can I keep just one?

No. Corydoras are social fish and should be kept in groups of at least 5–6.

Do they clean the tank?

No. They forage for food but still require proper feeding.

Do they need sand?

Soft sand is preferred to protect their barbels, though smooth substrate can also work.

[ARRIVED 26-MAR-2026] Corydoras trilineatus Three stripe Corydoras 3-5cm

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SKU: CTRIL

40 in stock

$15.00


All prices include GST
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    Description

    Corydoras trilineatus (False Julii Corydoras)

    Hardy, patterned cory with classic behaviour for community aquariums

    Quick Facts

    • Size: ~5–6 cm
    • Tank size: 50L+ recommended
    • Difficulty: 🟒 Easy
    • Temperament: Peaceful
    • Best kept: Groups (5–6+)
    • Plant safe: Yes

    Is this for you?

    βœ”οΈ Good if:

    • You want a hardy, beginner-friendly Corydoras
    • You like detailed, patterned fish
    • You have a peaceful community tank
    • You’re happy to keep a proper group

    ❌ Avoid if:

    • You want a fish that survives on leftovers
    • You plan to keep just one
    • You use sharp gravel substrate
    • You keep aggressive or highly competitive fish

    Why this fish?

    Corydoras trilineatus is a popular patterned cory known for its maze-like markings across the body.

    It is often mistaken for the rarer Corydoras julii, but offers the same peaceful behaviour and ease of care, making it a great choice for community tanks.

    Common mistakes

    • Confusing it with Corydoras julii (this is more commonly available)
    • Keeping them alone instead of in groups
    • Assuming they survive on leftover food
    • Using sharp substrate β†’ damages barbels
    • Overstocking the bottom of the tank

    Care made simple

    • Temperature: 22–26Β°C
    • Diet: Sinking pellets, wafers, frozen foods
    • Group size: 5–6+ recommended
    • Substrate: Soft sand preferred
    • Water: Clean and stable

    Pair with

    • Sinking pellets / bottom feeder food
    • Fine sand substrate
    • Driftwood and plants
    • Peaceful community fish
    NTA Insight:
    Most fish sold as β€œJulii Cory” are actually Corydoras trilineatus. The care is the same β€” focus on group size, proper feeding, and stable conditions.

    FAQ

    Is this the same as Julii Corydoras?

    Not exactly. Corydoras trilineatus is often sold as β€œJulii Cory”, but true julii are less common in the hobby.

    Are they good for beginners?

    Yes. They are hardy and suitable for beginners with a properly set up tank.

    Can I keep just one?

    No. Corydoras are social fish and should be kept in groups of at least 5–6.

    Do they clean the tank?

    No. They forage for food but still require proper feeding.

    Do they need sand?

    Soft sand is preferred to protect their barbels, though smooth substrate can also work.

    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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