Fritz MAXOUT (Bagged) – Treats up to 284L Contains a mix ofa high grade washed carbon and organic scavenger resins Polishes Aquarium Water quickly and efficiently. Quickly removes toxins and keeps trace elements in balance. Works in Fresh and Saltwater. Pre-Filled Nylon Bag. No mess. Directions & Dosage Place Max Out within a high flow area of your filtration system per 284L of water volume. No pre-rinsing is required. Fritz MAXOUT  is compatible with both canister filters and standard sumps. For maximum effectiveness, replace every 30 – 60 days. Can be used in both fresh and saltwater aquariums of all sizes.