Increase your aquarium’s filtration capacity with Genesis Rock. Each rock provides an incredible 23,000+ square feet (2,140+ m²) of surface area for beneficial bacterial colonization. Perfect for both freshwater and saltwater aquariums, Genesis Rocks are engineered to reduce phosphates, nitrates, and other dissolved organics while promoting healthier, more stable water quality. Key Benefits Designed for Fresh or Saltwater Aquariums 23,000+ Additional Square Feet (2,140+ m²) of Bacterial Space Per Rock Promotes Large Beneficial Bacteria Colonies Reduces Phosphates, Nitrates & Other Dissolved Organics Zero Leach Technology – 100% Fired Ceramics Durable: Built to last for years in your aquarium Available Pack Sizes Option Coverage Contents Dimensions 2 Pack Up to 2,650 litres (700 gallons) 2 × Genesis Rock 10 × 10 × 2.5 cm each 4 Pack Up to 5,300 litres (1,400 gallons) 4 × Genesis Rock 10 × 10 × 2.5 cm each What is Genesis Rock? Genesis Rock is a 100% ceramic compound fired at over 315°C (600°F). Its porous structure provides unmatched surface area, making it an excellent base for both aerobic (ammonia & nitrite removal) and anaerobic (nitrate removal) bacteria. Place it under substrate, in your sump, refugium, or integrate seamlessly into your aquascape. Directions Rinse thoroughly with purified or aquarium water. For best results, soak rocks in aquarium water mixed with your preferred bacterial product (e.g., Polyplab Genesis) for at least 12 hours. If not using supplements, rinse and place directly in your aquarium. Heavier bio-load tanks (e.g., predator systems) may require additional rocks. Placement Options Aerobic (Ammonia & Nitrite Removal): Place above water level with trickling flow (~150 L/h). Anaerobic (Nitrate Removal): Place in a low-flow, oxygen-poor zone (e.g., sump, refugium, under substrate). Balanced: Place in a medium flow area to support both aerobic bacteria on the surface and anaerobic bacteria inside the core. *Avoid contact with vibrating equipment such as protein skimmers to prevent block damage.
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