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(Note: Algae growth has no guarantee and is not warranted). RAIN2 pole mountable waterfall algae scrubber ATS for saltwater sumps, with waterproof submersible GEM5 (tm) lights and Green Grabber growth attachment screen. Eliminate waterchanges, remove nuisance algae, nitrate and phosphate. The RAIN2 will do most of the filtering needed for your fresh or saltwater aquarium, and in most cases it will do all the filtering if it is the proper size for your amount of feeding that you do and the amount of rock that you have. Part of this filtering includes helping eliminate two very important things that drive most aquarium owners crazy: Algae and waterchanges. The filter works by growing algae on the screen, and these algae consume all the "bad" things out of the water. This is how all the oceans, and all the lakes, are naturally filtered. Operates on both 120 and 240V. Can be shipped to any country. We are the only source for patent pending waterfall scrubbers: U.S. Patent Application 15/391,415. Far more powerful than chaeto or refugiums, and does not remove the food particles. And you can use the algae as food. The underwater submersible GEM5 lights (also patent pending) allow the RAIN2 to be placed in your sump anywhere you like, as low to the water as you like, which saves a lot of space. And the pole mounting option (recommended but not included) means you don't even need a shelf or a bracket. Also included is a 2 mm thick, 2 sided, patent pending Green Grabber (tm) algae attachment screen.