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[ALWAYS IN STOCK] MarinePure® 8"x8"x4" Biofilter Block – Maximum Surface Area for Superior Biological Filtration

Description

MarinePure® Biofiltration Blocks – The Complete Nitrification & Denitrification Solution

Advanced Biological Filtration for All Aquatic Systems

Specially engineered ceramic blocks providing dual-action water purification:
 Eliminates Ammonia/Nitrites (aerobic nitrification)
 Reduces Nitrates (anaerobic denitrification)
 Works in Freshwater & Saltwater
 Perfect for Sump or Wet/Dry Filters


Unmatched Performance

8"x8"x4" Block Features:
 139,800 ft²/ft³ surface area – 1,400x more than bio-balls!
 80-90% open porosity – Allows deep anaerobic bacteria colonization
 Ultra-lightweight (0.3-0.5 g/cc) yet durable
 Chemically inert – Won’t alter water chemistry

Flow Recommendations:
 Fast flow = Maximum ammonia/nitrite removal
 Slow flow = Enhanced nitrate reduction


Sizing Guide

For Nitrification (Active Systems):

Tank Size Blocks Required
100 gal 1 block
250 gal 1 block
500 gal 1-2 blocks

For Denitrification (Passive Systems):

Tank Size Blocks Required
50 gal 1 block
100 gal 1 block
500 gal 3 blocks

Why MarinePure Outperforms

 10,000% more surface area than plastic bio-balls
 Simulates live rock filtration without the cost
 Maintains crystal-clear water 24/7
 Military-grade ceramic – Never needs replacement


Pro Tip: Place blocks in skimmer risers or low-flow zones for maximum nitrate control!


Complete Your Filtration System Today!
(Also available in Plates, Spheres and GEMS for smaller tanks)

[ALWAYS IN STOCK] MarinePure® 8"x8"x4" Biofilter Block – Maximum Surface Area for Superior Biological Filtration

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SKU: 100895

$129.00


All prices include GST
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    Description

    MarinePure® Biofiltration Blocks – The Complete Nitrification & Denitrification Solution

    Advanced Biological Filtration for All Aquatic Systems

    Specially engineered ceramic blocks providing dual-action water purification:
     Eliminates Ammonia/Nitrites (aerobic nitrification)
     Reduces Nitrates (anaerobic denitrification)
     Works in Freshwater & Saltwater
     Perfect for Sump or Wet/Dry Filters


    Unmatched Performance

    8"x8"x4" Block Features:
     139,800 ft²/ft³ surface area – 1,400x more than bio-balls!
     80-90% open porosity – Allows deep anaerobic bacteria colonization
     Ultra-lightweight (0.3-0.5 g/cc) yet durable
     Chemically inert – Won’t alter water chemistry

    Flow Recommendations:
     Fast flow = Maximum ammonia/nitrite removal
     Slow flow = Enhanced nitrate reduction


    Sizing Guide

    For Nitrification (Active Systems):

    Tank Size Blocks Required
    100 gal 1 block
    250 gal 1 block
    500 gal 1-2 blocks

    For Denitrification (Passive Systems):

    Tank Size Blocks Required
    50 gal 1 block
    100 gal 1 block
    500 gal 3 blocks

    Why MarinePure Outperforms

     10,000% more surface area than plastic bio-balls
     Simulates live rock filtration without the cost
     Maintains crystal-clear water 24/7
     Military-grade ceramic – Never needs replacement


    Pro Tip: Place blocks in skimmer risers or low-flow zones for maximum nitrate control!


    Complete Your Filtration System Today!
    (Also available in Plates, Spheres and GEMS for smaller tanks)

    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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