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2. Freshwater aquarium algae - Wikipedia

   en.wikipedia.org/wiki/Freshwater_aquarium_algae

   However, total elimination of algae is considered unlikely in a hobby aquarium. Algae can be used as an bioindicator to inform an aquarist on water chemistry and other conditions. [2] Some species are intentionally cultivated within algae scrubbers. Few algae, such as marimo or red moss, are sought after for aquascaping in freshwater aquaria.

3. 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 ...

4. 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.

5. Aquarium filter - Wikipedia

   en.wikipedia.org/wiki/Aquarium_filter

   Algae scrubber (upflow version) floating on a reef pond. Algae may be grown purposely, which removes chemicals from the water which need to be removed in order to have healthy fish, invertebrates and corals. This is a natural ("green") filtering method, which lets an aquarium operate the way oceans and lakes operate. [18]

6. Refugium (fishkeeping) - Wikipedia

   en.wikipedia.org/wiki/Refugium_(fishkeeping)

   In fishkeeping, a refugium is an appendage to a marine, brackish, or freshwater fish tank that shares the same water supply. It is a separate sump , connected to the main show tank. [ 1 ] It is a " refugium " in the sense that it permits organisms to be maintained that would not survive in the main system, whether food animals, anaerobic ...

7. Birders, environmental groups alarmed by proposed Lake ... - AOL

   www.aol.com/birders-environmental-groups-alarmed...

   A Northern Pintail is shown feeding on Lake Mattamuskeet in 2016. The Hyde County lake is the proposed site of an algae treatment pilot program that received $5 million in the 2021 North Carolina ...