Keep your pond Green Free with our TetraPond Green Free Ultraviolet Water Clarifier. http://www/petco.com
Green algae can plague a water garden. One weapon in the arsenal to control algae is a UV clarifier. As the water is pumped through, the Tetra UV Clarifier exposes the algae to very high levels of ultraviolet light, eliminating the problem. [FLOWING WATER] You can't beat a Tetra UV Clarifier for continuous algae-free water.