Efficient Filtration for Crystal Clear Water Suitable for Carbon or GFO Efficient Up-Flow Design for Maximum Contact Time Detachable Canister for Easy Media Changes Integrated and Adjustable Sicce Pump Compact Footprint to Save Space AquaReady offers a unique media reactor design with the Sigma-1 In-Sump Media reactor. These convenient canisters make it easy to clean and change your media. Simply twist to lock or unlock the canister from the docking base, keeping the pump and cord stationary in your system at all times. These versatile in-sump media reactors can be used with carbon and GFO to help eliminate organic pollutants, odors, discolorations, and algae-fueling elements within marine and reef aquariums. The up-flow design with fluidized plates keeps filter media suspended and evenly dispersed, providing maximum contact time with your aquarium water. Water is introduced at the bottom of the filter and pushed upward through the media, then back into your tank. The integrated adjustable Sicce pump allows you to easily change the flow rate to best suit your needs while maintaining a minimal footprint for your in-sump setup. Tips for Use Rinse Media Thoroughly:Ensure media runs clear before connecting to the base and plugging in the pump. Adjust Flow Settings:Two adjustment pointson the pump and by twisting the canister. Always start with the pump at its lowest flow setting and allow the water to fill the canister slowly to prevent media from floating to the top and exiting the reactor. Release Trapped Bubbles:After filling, unplug the pump, tap on the reactor to release trapped bubbles, and allow the media to settle. Fine-Tune Water Flow:Once ready, plug the pump back in and adjust the water flow by twisting the canister slowly. GFO media should lightly tumble, while carbon should not tumble at all. Specifications Footprint: 3.94\” x 4.33\” Height: 13.39\” Maximum Capacity (Carbon): 1 Cup Maximum Capacity (GFO): 3/4 Cups Pump: Sicce Syncra Nano Power Consumption: 2.8 Watts