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Brochis Multiradiatus

Description

Brochis multiradiatus (Emerald Green Catfish)

Larger, active bottom-dweller for established community tanks

Quick Facts

  • Size: ~7–9 cm
  • Tank size: 60L+ (larger preferred)
  • Difficulty: 🟢 Easy–Moderate
  • Temperament: Peaceful
  • Best kept: Groups (3–5+)
  • Plant safe: Yes

Is this for you?

✔️ Good if:

  • You want a larger, more visible alternative to Corydoras
  • You have a well-established tank with enough floor space
  • You keep peaceful community fish
  • You’re willing to keep them in a small group

❌ Avoid if:

  • You have a nano tank (too large for small setups)
  • You expect them to act as “cleaner fish”
  • You keep aggressive or fast-feeding fish
  • You only want to keep one

Why this fish?

Brochis multiradiatus, often called the Emerald Green Catfish, is a larger and more robust relative of Corydoras. It offers similar peaceful behaviour but with more presence and activity in the tank.

Known for its metallic green sheen and active foraging, it adds both movement and visual interest to the lower levels of the aquarium.

Common mistakes

  • Buying them for nano tanks → they outgrow small setups
  • Thinking they survive on leftovers → they need proper feeding
  • Keeping them alone → leads to stress
  • Overcrowding the bottom of the tank
  • Using sharp substrate → can damage barbels

Care made simple

  • Temperature: 22–26°C
  • Diet: Sinking pellets, frozen foods, variety
  • Group size: 3–5+ recommended
  • Substrate: Soft sand preferred
  • Water: Clean and well-maintained

Pair with

  • Sinking pellets / bottom feeder food
  • Fine sand substrate
  • Driftwood / caves
  • Peaceful mid-water fish
NTA Insight:
These are often mistaken for Corydoras, but they grow significantly larger and need more space. Most issues come from underestimating their size and feeding needs.

FAQ

Are they the same as Corydoras?

No. They are closely related but grow larger and need more space.

Can they live in nano tanks?

Not recommended. They need more room as they grow.

Do they clean the tank?

No. They help with leftover food but still require proper feeding.

Do they need to be in groups?

Yes. They are social fish and do best in groups of 3 or more.

Brochis Multiradiatus

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    Description

    Brochis multiradiatus (Emerald Green Catfish)

    Larger, active bottom-dweller for established community tanks

    Quick Facts

    • Size: ~7–9 cm
    • Tank size: 60L+ (larger preferred)
    • Difficulty: 🟢 Easy–Moderate
    • Temperament: Peaceful
    • Best kept: Groups (3–5+)
    • Plant safe: Yes

    Is this for you?

    ✔️ Good if:

    • You want a larger, more visible alternative to Corydoras
    • You have a well-established tank with enough floor space
    • You keep peaceful community fish
    • You’re willing to keep them in a small group

    ❌ Avoid if:

    • You have a nano tank (too large for small setups)
    • You expect them to act as “cleaner fish”
    • You keep aggressive or fast-feeding fish
    • You only want to keep one

    Why this fish?

    Brochis multiradiatus, often called the Emerald Green Catfish, is a larger and more robust relative of Corydoras. It offers similar peaceful behaviour but with more presence and activity in the tank.

    Known for its metallic green sheen and active foraging, it adds both movement and visual interest to the lower levels of the aquarium.

    Common mistakes

    • Buying them for nano tanks → they outgrow small setups
    • Thinking they survive on leftovers → they need proper feeding
    • Keeping them alone → leads to stress
    • Overcrowding the bottom of the tank
    • Using sharp substrate → can damage barbels

    Care made simple

    • Temperature: 22–26°C
    • Diet: Sinking pellets, frozen foods, variety
    • Group size: 3–5+ recommended
    • Substrate: Soft sand preferred
    • Water: Clean and well-maintained

    Pair with

    • Sinking pellets / bottom feeder food
    • Fine sand substrate
    • Driftwood / caves
    • Peaceful mid-water fish
    NTA Insight:
    These are often mistaken for Corydoras, but they grow significantly larger and need more space. Most issues come from underestimating their size and feeding needs.

    FAQ

    Are they the same as Corydoras?

    No. They are closely related but grow larger and need more space.

    Can they live in nano tanks?

    Not recommended. They need more room as they grow.

    Do they clean the tank?

    No. They help with leftover food but still require proper feeding.

    Do they need to be in groups?

    Yes. They are social fish and do best in groups of 3 or more.

    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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