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2. Algaecide - Wikipedia

   en.wikipedia.org/wiki/Algaecide

   Barley straw, in England, is placed in mesh bags and floated in fish ponds or water gardens to help reduce algal growth without harming pond plants and animals. Barley straw has not been approved by the United States Environmental Protection Agency (EPA) for use as a pesticide and its effectiveness as an algaecide in ponds has produced mixed results during university testing in the United ...

3. Organisms involved in water purification - Wikipedia

   en.wikipedia.org/wiki/Organisms_involved_in...

   Aquatic vegetation may provide similar surface habitat for purifying bacteria, protozoa, and rotifers in a pond or marsh setting; although water circulation is often less effective. Plants and algae have the additional advantage of removing nutrients from the water; but some of those nutrients will be returned to the water when the plants die ...

4. How an algae-infested koi fish pond is deep cleaned - AOL

   www.aol.com/news/algae-infested-koi-fish-pond...

   The process involves netting out leaves and muck, power washing algae from rocks, and aerating the pond water. Sam Bates walks us through how he safely relocates koi fish to dewater the pond for a ...

5. Algae scrubber - Wikipedia

   en.wikipedia.org/wiki/Algae_scrubber

   An algae scrubber is a water filtering device which uses light to grow algae; in this process, undesirable chemicals are removed from the water. [1] Algae scrubbers allow hobbyists to operate their saltwater or freshwater tanks or ponds using natural filtration based on primary production, much as occurs in oceans and lakes.

6. Garden pond - Wikipedia

   en.wikipedia.org/wiki/Garden_pond

   This garden pond has two ponds separated by a waterfall with a one-foot drop; generally, the fish in the upper pond are smaller, and ones in the lower pond are larger. Ponds may be created by natural processes or by people; however, the origin of the hole in the ground makes little difference to the kind of wildlife that will be found in the pond.

7. Water garden - Wikipedia

   en.wikipedia.org/wiki/Water_garden

   Generally, algae attaches itself to the sides of the pond and remains innocuous. Some species of algae, such as "blanket weed", can grow up to a foot a day under ideal conditions and can rapidly clog a garden pond. On the other hand, free floating algae are microscopic and are what cause pond water to appear green.