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  2. Substrate (aquarium) - Wikipedia

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

    For freshwater aquaria, gravel is the most common substrate. To prevent damage to fish, gravel should not be sharp. Aquarium gravel can be as coarse as pea-sized or as fine as 1–2 mm. [1] It is available in a number of colors, and may be naturally colored or dyed, and may have a polymer seal to ensure it does not affect water chemistry. [1]

  3. Substrate (aquatic environment) - Wikipedia

    en.wikipedia.org/wiki/Substrate_(aquatic...

    Clay – A smooth, fine-grained material made of fine particles of hydrous aluminium phyllosilicate minerals (such as kaolinite). [2] [3] Mud – A mixture of water with silt, clay, or loam. Sand – Mineral particles between 0.06 and 2 mm in diameter. Granule – Between 2 and 4 mm in diameter. Pebble – Between 4 – 64 mm in diameter.

  4. Clay - Wikipedia

    en.wikipedia.org/wiki/Clay

    Clay is a type of fine-grained natural soil material containing clay minerals [1] (hydrous aluminium phyllosilicates, e.g. kaolinite, Al 2 Si 2 O 5 4). Most pure clay minerals are white or light-coloured, but natural clays show a variety of colours from impurities, such as a reddish or brownish colour from small amounts of iron oxide .

  5. Physical properties of soil - Wikipedia

    en.wikipedia.org/wiki/Physical_properties_of_soil

    Soil texture is determined by the relative proportion of the three kinds of soil mineral particles, called soil separates: sand, silt, and clay. At the next larger scale, soil structures called peds or more commonly soil aggregates are created from the soil separates when iron oxides, carbonates, clay, silica and humus, coat particles and cause ...

  6. Freshwater aquarium - Wikipedia

    en.wikipedia.org/wiki/Freshwater_aquarium

    In the case of a low tech aquarium, a layer of potting soil or root tabs is commonly put under the substrate to provide nutrients for the plants. [6] A biotope aquarium is an aquarium that is designed to simulate a natural habitat, with the fish, plants, and furnishings all representative of a particular place in nature. [5]

  7. Aquascaping - Wikipedia

    en.wikipedia.org/wiki/Aquascaping

    The Dutch aquarium employs a lush arrangement in which multiple types of plants having diverse leaf colors, sizes, and textures are displayed much as terrestrial plants are shown in a flower garden. This style was developed in the Netherlands starting in the 1930s, as freshwater aquarium equipment became commercially available. [ 1 ]

  8. Hydroponics - Wikipedia

    en.wikipedia.org/wiki/Hydroponics

    Hydroponics is a type of horticulture and a subset of hydroculture which involves growing plants, usually crops or medicinal plants, without soil, by using water-based mineral nutrient solutions in an artificial environment.

  9. Aquatic plant - Wikipedia

    en.wikipedia.org/wiki/Aquatic_plant

    [3] [4] [5] Aquatic plants only thrive in water or in soil that is frequently saturated, and are therefore a common component of swamps and marshlands. [6] One of the largest aquatic plants in the world is the Bolivian waterlily , which holds the Guinness World Record of having the largest undivided leaf at 3.2 m (10 ft 6 in) diameter; the ...

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