It quickly consumes Nitrate and Phosphate improving water quality and increasing oxygen. During our own testing we ran the ALR1 on a reverse light cycling turning the reactor on during the time the aquarium lights were off.This method helps to increase and stabilise an aquariums pH, raises the redox, and consumes exhaled CO2 from the corals. The Algae growth was steller and nutrients both PO4 & NO3 were effectively removed. The ALR1 is the ideal addition to all in one aquariums where there is a shortage of space for an Algae bed or simply to Turbo charge nutrient removal from your aquarium. When the reactor is full simply remove and dispose of the excess algae and all the nutrients it has consumed leaving enough to start the cycle over. Dimensions 210 x 170 x 480mm. LED Power consumption 16 watts. Stabilise pH or a reverse daylight cycle. Reduce in tank and sump detritus. Increase Redox levels for increased health and water quality. Any question then please ask. The item "ALR1 Algae Light Reactor Cheato Marine Reef Aquarium" is in sale since Sunday, September 20, 2020. This item is in the category "Pet Supplies\Fish & Aquarium\Filters". The seller is "2004thatcher" and is located in Clacton-on-Sea. This item can be shipped to United Kingdom, Antigua and barbuda, Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Australia, United States, Bahrain, Canada, Japan, New Zealand, China, Israel, Hong Kong, Norway, Indonesia, Malaysia, Mexico, Singapore, South Korea, Switzerland, Taiwan, Thailand, Bangladesh, Belize, Bermuda, Bolivia, Barbados, Brunei darussalam, Dominica, Egypt, Guernsey, Gibraltar, Guadeloupe, Grenada, French guiana, Iceland, Jersey, Jordan, Cambodia, Saint kitts and nevis, Saint lucia, Liechtenstein, Sri lanka, Macao, Monaco, Maldives, Montserrat, Martinique, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Turks and caicos islands, Aruba, Saudi arabia, South africa, United arab emirates, Ukraine, Chile, Bahamas, Colombia, Costa rica, Dominican republic, Guatemala, Honduras, Jamaica, Kuwait, Panama, Qatar, El salvador, Trinidad and tobago, Uruguay.