Mantis Bio Block – Ceramic Biological Filter Media (10×10×2.5cm)

The Mantis Bio Block is a high-performance ceramic biological filter media that supercharges your tank's beneficial bacteria. Built on Biological Aerated Filter (W-BAF) technology, its ultra-high surface area provides a huge home for nitrifying bacteria — for cleaner, more stable water in reef and freshwater systems alike.

• Size: 10 × 10 × 2.5 cm
• Ultra-high surface area for maximum biological filtration
• Made from inert ceramic beads — won't leach or alter chemistry
• Ideal for sumps, canister filters, and all-in-one tanks

Supported locally in Canada by Fins & Friends.