Shop for Pond Algae Controllers

Concentrated barley straw enriched with peat and humic acidLess mess and cost than bales of pond barleyClarifies ponds organically - no harmful chemicals Barley straw pellets are easier to apply to your pond than bales, pillows or pads. Decomposes quickly and works year-round to soften pond water and reduce negative effects of phosphate. Improves fish environment and works year-round. May also buffer pH and control some alkalinity, depending on level and length of use. Treats a 500 gallon pond up to 12 months or an 800 gallon pond up to 8 months.Please click on "More Information" for application rates.

Offers an easy, effective way to control and prevent the growth of algae. Leaves pond water crystal clear. Helps keep pond clear from algae when used regularly. Pond block is not recommended for lilies or hyacinths.

Offers an easy, effective way to control and prevent the growth of algae. Leaves pond water crystal clear. Helps keep pond clear from algae when used regularly. Pond block is not recommended for lilies or hyacinths.

Algaecide for Ponds

EPA RegisteredHelps control the growth of algaeJust toss in Pond Blocks and their time-release formula goes to work immediately Under normal conditions, just one block treats a 250-gallon pond. Not recommended for ponds that are home to water lilies or hyacinths.

A non-toxic coloring agent that will make your pond water a beautiful lagoon-black. It will not harm or discolor ornamental aquatic plants or fish. As a benefit of its color, Pond Shade reduces the amount of sunlight (UV light) that penetrates the water, making it an ideal non-toxic deterrent to green water.

Revolutionary spiral-flow design for longer UV exposure timeEasy-to-install pond UV clarifier for clear pond waterOutperforms larger traditional UV pond clarifiersThe revolutionary spiral-flow design of the Turbo Twist provides substantially more UV exposure time than conventional designs which allow the water to shortcut down one side of the unit. Coralife Compact Fluorescent UV lamp works to optimum efficiency; outperforms traditional units in much larger size, using less energy. The result, crystal-clear pond water, free of algae blooms.ItemWattsDimensionsMax. GalGPHInlet /Outlet 3X9W11" x 4"2,0005005/8"6X18W14" x 5"4,4001,0001"12X36W22" x 7"8,8001,9001"Please click on "More Information" for installation and maintenance instructions.Item #437638 GreenFree UV1 Replacement Bulb (9W) can also be used as a replacement bulb for the 9-Watt Sterilizer.

Revolutionary spiral-flow design for longer UV exposure timeEasy-to-install pond UV clarifier for clear pond waterOutperforms larger traditional UV pond clarifiersThe revolutionary spiral-flow design of the Turbo Twist provides substantially more UV exposure time than conventional designs which allow the water to shortcut down one side of the unit. Coralife Compact Fluorescent UV lamp works to optimum efficiency; outperforms traditional units in much larger size, using less energy. The result, crystal-clear pond water, free of algae blooms.ItemWattsDimensionsMax. GalGPHInlet /Outlet 3X9W11" x 4"2,0005005/8"6X18W14" x 5"4,4001,0001"12X36W22" x 7"8,8001,9001"Please click on "More Information" for installation and maintenance instructions.Item #437638 GreenFree UV1 Replacement Bulb (9W) can also be used as a replacement bulb for the 9-Watt Sterilizer.

Revolutionary spiral-flow design for longer UV exposure timeEasy-to-install pond UV clarifier for clear pond waterOutperforms larger traditional UV pond clarifiersThe revolutionary spiral-flow design of the Turbo Twist provides substantially more UV exposure time than conventional designs which allow the water to shortcut down one side of the unit. Coralife Compact Fluorescent UV lamp works to optimum efficiency; outperforms traditional units in much larger size, using less energy. The result, crystal-clear pond water, free of algae blooms.ItemWattsDimensionsMax. GalGPHInlet /Outlet 3X9W11" x 4"2,0005005/8"6X18W14" x 5"4,4001,0001"12X36W22" x 7"8,8001,9001"Please click on "More Information" for installation and maintenance instructions.Item #437638 GreenFree UV1 Replacement Bulb (9W) can also be used as a replacement bulb for the 9-Watt Sterilizer.

Revolutionary spiral-flow design for longer UV exposure timeEasy-to-install pond UV clarifier for clear pond waterOutperforms larger traditional UV pond clarifiersThe revolutionary spiral-flow design of the Turbo Twist provides substantially more UV exposure time than conventional designs which allow the water to shortcut down one side of the unit. Coralife Compact Fluorescent UV lamp works to optimum efficiency; outperforms traditional units in much larger size, using less energy. The result, crystal-clear pond water, free of algae blooms.ItemWattsDimensionsMax. GalGPHInlet /Outlet 3X9W11" x 4"2,0005005/8"6X18W14" x 5"4,4001,0001"12X36W22" x 7"8,8001,9001"Please click on "More Information" for installation and maintenance instructions.Item #437638 GreenFree UV1 Replacement Bulb (9W) can also be used as a replacement bulb for the 9-Watt Sterilizer.