Kolar Filtration Metabolix Bio Pellets provide a powerful solution for nutrient control in your saltwater aquarium. These pellets are made from pure, high-quality PHA, which acts as a solid organic carbon source for beneficial bacteria. As these bacteria colonize the pellets, they consume nitrates and phosphates from the water column, effectively reducing unwanted nutrients that can lead to algae growth and poor coral health. Manufactured under strict quality standards, these patented pellets feature a unique plump, round pearl shape. This design has been proven to provide superior fluidization within a media reactor, ensuring consistent tumbling with minimal clumping or floating issues. This optimal movement allows for maximum surface area contact with aquarium water, leading to more efficient bacterial colonization and nutrient reduction. This product is perfect for reef hobbyists aiming to achieve and maintain an ultra-low nutrient environment, which is crucial for the health and vibrant coloration of sensitive corals like SPS. For best results, use these pellets in a fluidized media reactor. Advanced aquarists using recirculating reactors can precisely dial in the flow to control the rate of nitrate removal, allowing for the maintenance of trace nutrient levels that can enhance coral coloration.