Keep algae under control and pond water clear for just pennies a day! TetraPond Pond Block makes effective algae control as simple as tossing in a tablet/block once a month. Clears cloudy water and controls algae in ornamental fish ponds, water features and water fountains. Convenient algaecide block takes the guesswork out of measuring doses.
TetraPond Pond Block is not recommended for ponds or water gardens with live plants. One block treats up to 250 gallons for 30 days. Use only as directed. Available in 4-block package or 50 count jar.
Please click on "More Information" for ingredients and directions.