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How to Remove & Prevent Algae in a Pond
How to Remove & Prevent Algae in a Pond. Two common types of algae grow in outdoor ponds: plankton -- the type of growth that turns water thick and green, and string algae -- which tends to grow on the outer edges and bottom areas of ponds. Left to grow, algae can cause a slimy film that can eventually kill fish or other aquatic creature that live...
Two common types of algae grow in outdoor ponds: plankton -- the type of growth that turns water thick and green, and string algae -- which tends to grow on the outer edges and bottom areas of ponds. Left to grow, algae can cause a slimy film that can eventually kill fish or other aquatic creature that live in the pond. Too much sunlight exposure on the pond, stagnant water and humid weather are some causes of algae growth.
Things You'll Need
Plants
Scrub Brushes
UV Pond Filter
Pond Vacuum
Chemical Solution
Situate the outdoor pond in an area that only gets a small amount of sunlight. This will reduce the risk of any type of algae formation, yet still allow aquatic plants to thrive.
Place several aquatic plants in the pond. Floating lilies provide plenty of surface coverage for a pond. Other plants that work well on the surface are duckweed and water hyacinth. Use oxygenating plants on the bottom, such as anacharis. The benefit to using oxygenating plants inside the pond is that they will consume the nutrients that algae usually utilize, leaving the algae without survival resources.
Install a UV filter in the pond. The rays from the UV lights will help to keep algae growth to a minimum.
Skim the pond of algae growth. Skimmers with nets can be used to take out algae overgrowth that is floating on the pond's surface. Use the scrub brushes to clean algae off of the sides of the pond, and off any rocks that are in the water.
Fill the pond with algae-inhibiting chemicals. This will help to keep the pond free of any algae in the future, or to kill algae that is currently in the pond.
