DrTim's Aquatics NP-Active Pearls offer an innovative and natural method for controlling nitrate and phosphate levels in your saltwater aquarium. These pearls are composed of pure, biodegradable bio-polymers that act as a solid carbon source for beneficial, nutrient-reducing bacteria. As these bacteria colonize the surface of the pearls, they consume excess nitrates and phosphates from the water column, effectively starving out nuisance algae and creating a healthier, more stable aquatic environment for your fish and corals. Engineered for all aquarium types, NP-Active Pearls are safe for all inhabitants and contain no harmful fillers or chemicals. For optimal performance, the pearls must be placed in a fluidized media reactor to ensure they are constantly tumbling and well-oxygenated. A powerful protein skimmer is highly recommended to export the resulting bacteria biomass, completing the nutrient removal process. The pearls are consumed by the bacteria over time and will need to be replenished periodically to maintain consistent nutrient control. This product is perfect for the reef aquarist seeking a reliable, low-maintenance alternative to daily liquid carbon dosing for nutrient management. It is especially beneficial for those aiming to achieve ultra-low nutrient systems to enhance coral coloration and growth. By providing a steady food source for denitrifying bacteria, NP-Active Pearls help create the pristine water conditions necessary for a thriving reef tank, making it a go-to solution for both beginners and advanced hobbyists battling high nutrient levels.