The Clear Water algae scrubber is an amazing innovative water filtering device that uses light to cultivate algae in an effort to reduce nutrient build in personal and retail aquariums and ponds. Whether you have a pond, reef, saltwater, or freshwater tank and algae scrubber can be a phenomenal choice for you. They work out great if you are working with limited space, but still want all the benefits of natural filtration. Although Clear Water Aquatics is new to the aquarium industry, they are proving to be one of the top manufacturers of aquarium products. They offer superior quality and exceptional customer service. Check out their full line of sumps that we carry as well. All of there sumps are designed to house their algae scrubbers. Should you have any further questions please contact us.