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2. Aquarium filter - Wikipedia

   en.wikipedia.org/wiki/Aquarium_filter

   Air-driven corner filter. Aquarium filters are critical components of both freshwater and marine aquaria. [1] [2] [3] Aquarium filters remove physical and soluble chemical waste products from aquaria, simplifying maintenance.

3. Recirculating aquaculture system - Wikipedia

   en.wikipedia.org/wiki/Recirculating_aquaculture...

   Recirculating aquaculture systems (RAS) are used in home aquaria and for fish production where water exchange is limited and the use of biofiltration is required to reduce ammonia toxicity. [1] Other types of filtration and environmental control are often also necessary to maintain clean water and provide a suitable habitat for fish. [2]

4. Aquarium heater - Wikipedia

   en.wikipedia.org/wiki/Aquarium_heater

   An aquarium heater is a device used in the fishkeeping hobby to warm the temperature of water in aquariums. [1] Most tropical freshwater and marine aquariums are maintained at temperatures that range from 22 to 30 °C (72 to 86 °F).

5. Freshwater aquarium - Wikipedia

   en.wikipedia.org/wiki/Freshwater_aquarium

   For a tropical fish tank, maintaining a warm environmental temperature ranging between 75 and 86 °F (24 to 30 °C) enables different tropical fish to thrive at different temperatures. [2] Aquarium substrate usually consists of sand or gravel. Aquarium substrate is important for the fish's health and replicating their natural environment.

6. Sump (aquarium) - Wikipedia

   en.wikipedia.org/wiki/Sump_(aquarium)

   [1] [2] A remote sump allows for a clutter-free display tank. It is found mainly in a reef aquarium or marine aquarium. The sump sits below the main tank, and is used as a filter, as well as a holding place for unsightly, miscellaneous equipment such as protein skimmers, calcium reactors, and heaters.

7. Raceway (aquaculture) - Wikipedia

   en.wikipedia.org/wiki/Raceway_(aquaculture)

   Self-cleaning can sometimes be achieved if the fish stocks density is sufficiently high and the water level is sufficiently low. For example, if trout are stocked at 20 kilograms per cubic metre, they can keep the raceway unit clean by their swimming movements, preventing waste solids from settling to the raceway floor. [3] [4]