PolypLab Genesis Rock Twin Pack – High Surface Area Biological Filter Media

PolypLab Genesis Rock Twin Pack is a high-performance biological filtration solution designed to dramatically increase beneficial bacterial capacity in both freshwater and saltwater aquariums. Each Genesis Rock provides over 23,000 square feet of surface area, allowing massive bacterial colonisation to naturally reduce ammonia, nitrite, nitrate, phosphate, and other organic waste.

Manufactured from an inert ceramic compound fired at over 600°C, Genesis Rocks are completely reef-safe and will not leach harmful substances. Their unique porous structure supports aerobic bacteria on the outer surfaces while encouraging anaerobic bacteria deep inside, delivering efficient nutrient reduction across multiple stages of the nitrogen cycle.

Whether placed in a sump, refugium, or display tank, Genesis Rocks provide long-term biological stability and are ideal for both lightly stocked and high bioload systems.

Key Features:

• Twin pack includes two Genesis Rocks
• 23,000+ sq ft of surface area per rock
• Supports aerobic & anaerobic bacterial colonies
• Reduces ammonia, nitrite, nitrate, phosphate & organics
• Made from inert fired ceramic material
• Safe for freshwater & saltwater aquariums
• Suitable for sumps, refugiums, or in-tank placement
• One rock supports 300–1300 litres depending on bioload
• Booster pack option available with bacterial supplement

PolypLab Genesis Rock Twin Pack delivers powerful, long-term biological filtration using ultra-high surface area ceramic media. Designed to support complete nutrient reduction, it enhances water clarity, stability, and overall aquarium health—making it an essential upgrade for serious reef and freshwater aquarists. Available now at Reef freaks.