Take control of excess nutrients, improve water clarity, and support a healthier reef microbiome with one complete water-quality system. Our Rapid Nutrient Control & Water Quality Bundle combines three powerful products designed to work together to address the major sources of poor water quality in reef aquariums. Use activated carbon to remove dissolved organic compounds and unwanted contaminants, Rapid Phosphate Reducer to quickly reduce elevated phosphate, and PNS DeepCycle™ to support biological nutrient cycling and a healthy aquarium microbiome. Whether you're dealing with elevated phosphate, nuisance algae, cloudy or discolored water, or simply want to improve your reef's overall water quality, this bundle gives you a comprehensive approach to nutrient management. What's Included - Catalytic Activated Carbon (2.25 lbs) Premium catalytic activated carbon designed to rapidly remove dissolved organic compounds, toxins, yellowing compounds, chlorine, chloramine, and unwanted odors. Helps produce exceptionally clear water and improves light penetration throughout your aquarium. - Rapid Phosphate Reducer (1000 mL ​/​ 33.8 oz) Designed for reef keepers who need to quickly bring elevated phosphate levels under control . Ideal for addressing nutrient spikes and helping reduce the phosphate available to nuisance algae. - Hydrospace PNS DeepCycle™ (500 mL ​/​ 16 oz) Live beneficial purple non-sulfur bacteria that help consume dissolved organic matter, improve nutrient cycling, and support a diverse and healthy aquarium microbiome. PNS DeepCycle™ complements chemical filtration by providing biological nutrient management. A Complete Approach to Nutrient Control Each product addresses a different aspect of aquarium water quality: - Rapidly reduce elevated phosphate - Remove dissolved organic waste and unwanted contaminants - Improve water clarity and light penetration - Support natural biological nutrient cycling - Help create a healthier and more stable reef environment - Combat the conditions that contribute to nuisance algae Works well for - Reef Aquariums - Mixed Reef Systems - SPS & LPS Aquariums - Aquariums Experiencing Elevated Phosphate - Systems Experiencing Nuisance Algae - High-Bioload Aquariums - Reef Keepers Looking for Faster Nutrient Control Chemical filtration and biological filtration work together to give you a smarter, more complete way to manage reef aquarium nutrients. This bundle is recommended for advanced aquarists. BUNDLE DISCOUNT Large Bundle includes: Catalytic Activated Carbon (2.25 lb) –   $39.99 Rapid Phosphate Reducer (1000 mL) –   $54.99 PNS DeepCycle (500 mL ​/​ 16 oz) –   $32.99 Regular Pricing TOTAL -  $127.97 Bundled Pricing - $119.97 ---- SAVES $8!!