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[ARRIVED 23-JAN-2026] Seachem Zip Bag – Large 48 x 43 cm (19” x 17”) 8 Mesh

Description

Seachem Zip Bag – Large (48 × 43 cm / 19” × 17”) – 8 Mesh

Durable reusable mesh bag for holding filtration media in freshwater and marine aquariums

Quick Facts

  • Size: 48 × 43 cm (19” × 17”)
  • Mesh: Fine 8 mesh construction
  • Closure: Corrosion-resistant zipper
  • Use: Filtration media containment
  • Suitable For: Freshwater & marine aquariums
  • Reusable: Yes

Is this for you?

✔️ Good if:

  • You use loose filtration media
  • You want secure media containment
  • You need a reusable filter bag
  • You run canister, sump, or reactor filtration

❌ Avoid if:

  • You only use cartridge-style filters
  • You do not run loose media
  • You need ultra-micro polishing filter socks
  • You want disposable media bags

Why this media bag?

The Seachem Zip Bag provides a secure, reusable solution for holding filtration media while maintaining strong water flow.

Unlike string-tie media bags, the corrosion-resistant zipper prevents accidental opening and reduces the risk of fine media escaping into your filter system.

Its durable mesh construction makes it ideal for chemical, biological, or specialty filtration media in both freshwater and marine systems.

Common mistakes

  • Overpacking media → reduces water flow
  • Using mesh size incorrectly for ultra-fine powders
  • Forgetting to rinse media before installation
  • Allowing debris buildup without cleaning
  • Using oversized bags in cramped filter chambers

Use made simple

  • Fill with desired filtration media
  • Zip securely closed
  • Place inside canister, sump, or filter chamber
  • Allow water to flow through naturally
  • Rinse and reuse during maintenance

Pair with

  • Seachem Matrix
  • Seachem Purigen
  • Activated carbon
  • Biological filtration media
  • Canister and sump filtration systems
NTA Insight:
Media bags are often overlooked, but they directly affect maintenance efficiency. A quality zip bag makes media changes faster, cleaner, and more reliable over time.

FAQ

What can I use this bag for?

It is designed to hold filtration media such as carbon, Purigen, Matrix, resins, or biological media.

Is the zipper safe underwater?

Yes. The corrosion-resistant zipper is designed for long-term aquarium use.

Can I reuse this bag?

Yes. It is washable and designed for repeated use.

Will fine media leak out?

The fine mesh is designed to hold small filtration media securely while allowing water flow.

Can this be used in freshwater and marine tanks?

Yes. It is suitable for both freshwater and saltwater aquariums.

[ARRIVED 23-JAN-2026] Seachem Zip Bag – Large 48 x 43 cm (19” x 17”) 8 Mesh

Product form
Free pickup in our shop(s)

SKU: 724919-1505

1 in stock

$29.00


All prices include GST
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    Description

    Seachem Zip Bag – Large (48 × 43 cm / 19” × 17”) – 8 Mesh

    Durable reusable mesh bag for holding filtration media in freshwater and marine aquariums

    Quick Facts

    • Size: 48 × 43 cm (19” × 17”)
    • Mesh: Fine 8 mesh construction
    • Closure: Corrosion-resistant zipper
    • Use: Filtration media containment
    • Suitable For: Freshwater & marine aquariums
    • Reusable: Yes

    Is this for you?

    ✔️ Good if:

    • You use loose filtration media
    • You want secure media containment
    • You need a reusable filter bag
    • You run canister, sump, or reactor filtration

    ❌ Avoid if:

    • You only use cartridge-style filters
    • You do not run loose media
    • You need ultra-micro polishing filter socks
    • You want disposable media bags

    Why this media bag?

    The Seachem Zip Bag provides a secure, reusable solution for holding filtration media while maintaining strong water flow.

    Unlike string-tie media bags, the corrosion-resistant zipper prevents accidental opening and reduces the risk of fine media escaping into your filter system.

    Its durable mesh construction makes it ideal for chemical, biological, or specialty filtration media in both freshwater and marine systems.

    Common mistakes

    • Overpacking media → reduces water flow
    • Using mesh size incorrectly for ultra-fine powders
    • Forgetting to rinse media before installation
    • Allowing debris buildup without cleaning
    • Using oversized bags in cramped filter chambers

    Use made simple

    • Fill with desired filtration media
    • Zip securely closed
    • Place inside canister, sump, or filter chamber
    • Allow water to flow through naturally
    • Rinse and reuse during maintenance

    Pair with

    • Seachem Matrix
    • Seachem Purigen
    • Activated carbon
    • Biological filtration media
    • Canister and sump filtration systems
    NTA Insight:
    Media bags are often overlooked, but they directly affect maintenance efficiency. A quality zip bag makes media changes faster, cleaner, and more reliable over time.

    FAQ

    What can I use this bag for?

    It is designed to hold filtration media such as carbon, Purigen, Matrix, resins, or biological media.

    Is the zipper safe underwater?

    Yes. The corrosion-resistant zipper is designed for long-term aquarium use.

    Can I reuse this bag?

    Yes. It is washable and designed for repeated use.

    Will fine media leak out?

    The fine mesh is designed to hold small filtration media securely while allowing water flow.

    Can this be used in freshwater and marine tanks?

    Yes. It is suitable for both freshwater and saltwater aquariums.

    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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