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2. 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.

3. Freshwater aquarium algae - Wikipedia

   en.wikipedia.org/wiki/Freshwater_aquarium_algae

   Algae is typically considered a nuisance and subject to removal through the use of algicides and the release of algae eaters. 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 ...

4. Caulerpa lentillifera - Wikipedia

   en.wikipedia.org/wiki/Caulerpa_lentillifera

   Caulerpa lentillifera is also eaten in Vietnam, where it is known as rong nho or rong nho biển, meaning "grape algae" or "sea grape algae"; [15] in Korea, where it is known as bada podo (바다포도), also meaning "sea grapes"; and in Indonesia (particularly Bali), where it is known as bulung.

5. Aquarium filter - Wikipedia

   en.wikipedia.org/wiki/Aquarium_filter

   In this design, water is fed by gravity to the filter below the aquarium. Prefiltered water is delivered to a perforated plate (drip plate). Prefiltering may take place in the aquarium via a foam block or sleeve in the overflow, or weir siphon, or it may be prefiltered by filter wool resting on the perforated plate. The waste laden water from ...

6. Algae eater - Wikipedia

   en.wikipedia.org/wiki/Algae_eater

   Algae eater or algivore is a common name for any bottom-dwelling or filter-feeding aquatic animal species that specialize in feeding on algae and phytoplanktons.Algae eaters are important for the fishkeeping hobby and many are commonly kept by aquarium hobbyists to improve water quality. [1]

7. Filter feeder - Wikipedia

   en.wikipedia.org/wiki/Filter_feeder

   The basking shark is a passive filter feeder, filtering zooplankton, small fish, and invertebrates from up to 2,000 tons of water per hour. [6] Unlike the megamouth and whale sharks, the basking shark does not appear to actively seek its quarry; but it does possess large olfactory bulbs that may guide it in the right direction.