9/28/2023 0 Comments Oolite live sand( January 2023) ( Learn how and when to remove this template message) You may improve this section, discuss the issue on the talk page, or create a new section, as appropriate. The examples and perspective in this section may not represent a worldwide view of the subject. Because of its extremely small grain size, oolitic sand has a lot of surface area, which promotes high bacterial growth. This unusually smooth sand promotes the growth of bacteria, which are important biofilters in home aquaria. Also known as "oolitic" sand, the sugar-sized round grains of this sand pass easily through the gills of gobies and other sand-sifting organisms. Oolites are often used in the home aquarium industry because their small grain size (0.2 to 1.22 mm) is ideal for shallow static beds and bottom covering of up to 1" in depth. The size of the oolites reflect the time that they were exposed to the water before they were covered with later sediment. The oolites are commonly found in large current bedding structures that resemble sand dunes. Strong intertidal currents wash the 'seeds' around on the seabed, where they accumulate layers of chemically precipitated calcite from the supersaturated water. The mechanism of formation starts with a small fragment of sediment acting as a 'seed', such as a piece of a shell. They are usually formed in warm, supersaturated, shallow, highly agitated marine water intertidal environments, though some are formed in inland lakes. Oolitic hematite occurs at Red Mountain near Birmingham, Alabama, along with oolitic limestone. Dolomitic and chert ooids are most likely the result of the replacement of the original texture in limestone. Ooids are most commonly composed of calcium carbonate ( calcite or aragonite), but can be composed of phosphate, clays, chert, dolomite or iron minerals, including hematite. The term oolith can refer to oolite or individual ooids. Strictly, oolites consist of ooids of diameter 0.25–2 millimetres rocks composed of ooids larger than 2 mm are called pisolites. Oolite or oölite (from Ancient Greek ᾠόν (ōión) 'egg stone') is a sedimentary rock formed from ooids, spherical grains composed of concentric layers. Modern ooids from a beach on Joulter Cays, The Bahamas Ooids on the surface of a limestone Carmel Formation (Middle Jurassic) of southern Utah Thin-section of calcitic ooids from an oolite within the Carmel Formation (Middle Jurassic) of southern Utah This is normal and will clear up in a day or so.For the video game, see Oolite (video game). Tiny sand-coated air bubbles may form until the sand is completed wetted. The sand needs to be rinsed and then allowed to get fully wet in the aquarium. The only complaint about this substrate is from first-time sand users. If you like the look of black sand in a reef, you’ll have no problems with this substrate. You’ll have to use a cichlid buffer to raise the pH for Africans.īut is it reef safe? Yes! Reef aquarists have had very good success using Imagitarium in nano and pico reef aquariums. This sand can be used with African cichlids, but it won’t raise or buffer the pH. This is a plus, proving the sand is inert and won’t change the parameters in your aquarium. There have been no reports of the sand altering water hardness, alkalinity or pH. Soft-bellied tropicals, like loaches and Corys will be able to rest on the sand without scratching their skin. Fan shrimp will have no problem walking around of a bed of this sand. The sand is smooth and easily sifted by Amano, cherry and other clawed shrimp. Imagitarium black sand is ideal for freshwater shrimp tanks. Specialty sand will raise the pH and are best suited for African cichlid aquariums. Some sands are pH neutral, having no effect on water chemistry. In low-oxygen conditions plant nutrients, especially trace elements, are transformed into a form that plants can take in through the roots. Live plants also thrive in the low-oxygen conditions in a sandy substrate. The nutrients will tend to stay in the sand bed and not dissolve into the aquarium water and stimulate algae growth. This is ideal when adding solid fertilizers around plant roots. The tightly packed grains don’t allow a lot of water flow through the substrate. The tiny grains surround the roots and anchor the plants. Live plants seem to do best with a sand-like substrate. If you want your tank to look more natural, sand is the way to go. Others like to excavate a “nest” for egg-laying. Some species will grab mouthfuls of sand, sifting it for food. Many tropical fish like to rest on the smooth sand. Tropical rivers, lakes and streams normally have a sandy bottom consisting of fine sand. Many freshwater aquarists like the look of a small-sized substrate.
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