Up to 75 gallons, All Lifegard Turbo Reactors are engineered to the highest quality and efficiency to promote the growth of Nitrate and Phosphate reducing bacteria and Enzymes. They name TURBO is due to a unique high flow spinning action to provide the highest water quality in a short time. The internal mechanism provides a unique anti-clumping spiral flow that maximizes the media contact time as well as greater flow through the media. Resulting in an accelerated chemical and biological filtration to quickly remove nitrates, phosphates, slime algae and other nuisance algae for a marine or freshwater aquarium. Our design allows the ease of maintenance. Whether you want to change, add or mix media, simply unscrew the plastic screws on the top to remove the top cover and it opens up for full access. Turbo Reactors are designed to run Bio-pellets of ALL shapes and sizes, GFO, Carbon etc. It comes with diffuser plates and 2 pieces of foam for GFO and other fine filter media.