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  2. Aquarium filter - Wikipedia

    en.wikipedia.org/wiki/Aquarium_filter

    In the natural environment these nitrates are subsequently taken up by plants as fertilizer and this does indeed happen to some extent in an aquarium planted with real plants. An aquarium is, however, an imperfect microcosm of the natural world. Aquariums are usually much more densely stocked with fish than the natural environment.

  3. Berlin Method - Wikipedia

    en.wikipedia.org/wiki/Berlin_Method

    The Berlin Method of biological filtration is a method for maintaining a clean and stable environment within a saltwater aquarium, typically a coral reef system. This method relies on the use of ample live rock (rock with live marine organisms and bacteria on or in it).

  4. List of brackish aquarium fish species - Wikipedia

    en.wikipedia.org/wiki/List_of_brackish_aquarium...

    Requires brackish aquarium conditions with very low Nitrite and Nitrate levels to be kept successfully. Freshwater compromises immune system, harms puffer, and shortens life extremely. Commonly kept in freshwater. Green spotted puffer Tetraodon nigroviridis: 6" Often sold as freshwater fish, but this species actually thrives in brackish water.

  5. Aquaponics - Wikipedia

    en.wikipedia.org/wiki/Aquaponics

    Nitrate levels peak later in the startup phase as the system completes nitrogen cycles and maintains a healthy biofilter and these bacteria grow into a mature colony. [37] with nitrate levels peaking later in the startup phase. [citation needed] In the nitrification process ammonia is oxidized into nitrite, which releases hydrogen ions into the ...

  6. Recirculating aquaculture system - Wikipedia

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

    In this type of system ammonia produced by the fish is not only converted to nitrate but is also removed by the plants from the water. [22] In an aquaponics system fish effectively fertilize the plants, this creates a closed looped system where very little waste is generated and inputs are minimized.

  7. Des Moines Water Works asks residents not to water lawns due ...

    www.aol.com/des-moines-water-works-asks...

    Since early April, Des Moines Water Works says it has blended water sources; maxed out production at its treatment plants using reverse osmosis filtration; tapped low-nitrate water from reservoirs ...

  8. List of marine aquarium plant species - Wikipedia

    en.wikipedia.org/wiki/List_of_marine_aquarium...

    It requires a sand bed at least 4 in (10.2 cm) deep along with calcium supplementation like many other calcified stem plants. In aquariums, a mature specimen will often die, only to produce new individuals at its base. [111] 8 in (20.3 cm) [111] Neptune's shaving brush: Penicillus dumetosus: Easy [112] Moderate [112] Fair [112] Moderate-High [112]

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