Bioscape Coral Rubble 10kg 20–50 mm Diameter (COR04)
The Bioscape Coral Rubble is a high-quality natural media designed to improve biological filtration, buffer pH, and maintain long-term water stability in marine, reef, and cichlid aquariums. Each rubble piece ranges between 20mm and 50mm, offering the perfect size for sump chambers, refugiums, and canister filter compartments.
Made from 100% natural coral and aragonite, this rubble is naturally rich in calcium and carbonates that slowly dissolve over time, helping to maintain alkalinity, support coral skeleton growth, and stabilise water chemistry. Its coarse, irregular surface provides an excellent area for beneficial bacteria to colonise, enhancing nitrification and promoting clean, balanced water conditions.
The natural colour and texture of Bioscape Coral Rubble also make it ideal for decorative aquascaping, base rock layers, or as a substrate enhancer in marine and reef setups. It’s completely aquarium safe and will not cloud the water or release harmful compounds.
Key Features:
- 100% natural and safe for all aquarium types
- Buffers pH and adds calcium to stabilise water
- Excellent biological filter media for marine systems
- Perfect for sumps, filters, and reef aquascaping
- Long-lasting, natural appearance for realistic displays
Ensure consistent water balance and biological performance with Bioscape Coral Rubble - a natural, reliable media for healthy, thriving aquariums.
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For full delivery & returns details, please refer to our Shipping & Returns page.
FREE SHIPPING* Free shipping applies on nearly all products across our website with Australian shipping addresses only. Customers living in rural areas or purchasing bulky/fragile items are advised to reach out first before ordering. Offer cannot be applied to previous purchases or the purchase of gift cards and cannot be redeemed for cash. Offer cannot be used in conjunction with any other discounts. Orders will arrive to destinations within 3-7 business days where possible, with Authority To Leave only. If you do not wish to use this delivery method, other chargeable methods will be available at checkout.
CLICK & COLLECT Local Pickup is available for all South Australian customers only. Customers can visit our Edwardstown warehouse during business hours to pick up their orders. Simply choose the Local Pickup option at checkout and we will email you when your order is ready. Local pickup purchases made outside of SA will be automatically refunded.
