About This 2-in-1 Zeolite for Superior Filtration: Zeo-Carb combines the power of zeolite, creating a premium chemical filter media that eliminates impurities, odors, and discolorations while effectively removing harmful elements, promoting cleaner, clearer water Highly Adsorbent for Maximum Water Clarity: This blend provides high adsorption efficiency, targeting harmful substances to deliver crystal-clear water, ideal for both freshwater and saltwater aquariums Promotes Healthier Aquatic Life: By removing contaminants, Zeo helps reduce stress on fish and aquatic plants, creating a healthier, more stable environment for your aquarium inhabitants Phosphate-Free Formula: Zeo is formulated to avoid raising levels, ensuring that it improves water quality without encouraging blooms, maintaining a balanced and clean ecosystem Easy Maintenance for Consistent Results: For best performance, replace Zeo every 4 weeks to maintain its maximum filtration capacity and continue to enjoy clear, healthy water in your aquarium. Suitable for use in both freshwater and saltwater environments Overview Brand : Fluval Item Weight : 60 Grams Item Form : Filter Unit Count : 1 Count Manufacturer : Rolf C. Hagen (USA) Corp.