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A deep sand bed is [1] a filtration method used in some saltwater aquariums and some freshwater aquariums. A deep sand bed, similar to the Berlin Method , is designed to cultivate anaerobic bacteria in the bottom layers of sand , converting nitrate to nitrogen gas to remove toxic nitrates.
Live sand, a term used in aquarism, is natural reef coral sand populated with millions of beneficial bacteria and organisms which aid in the dissolving of organic wastes like ammonia, nitrites and nitrates produced by larger organisms in saltwater aquariums. Live sand can be purchased from aquarium stores, but most hobbyists make their own by ...
Hydrophobic sand (or magic sand) is a toy made from sand coated with a hydrophobic compound. The presence of the hydrophobic compound causes the grains of sand to adhere to one another and form cylinders (to minimize surface area) when exposed to water, and form a pocket of air around the sand. [1] The pocket of air makes magic sand unable to ...
Simple DIY fluidized sand bed filter. The fluidized bed filter (FBF) is a biological reactor only. The principle is to direct water through a sand (or similar media) bed from below so that the sand becomes fluidized – behaves like a fluid. This mechanism is seen in liquefaction, quick sand, and industrial processes including municipal sewage ...
A sand-sifting goby cleans the substrate through its gills, including getting rid of certain bacteria, and also grazes on algae. A peaceful fish that should be kept alongside similarly non ...
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]
A Bed-Stuy fire-hydrant-fueled street aquarium that went viral on social media was forced to close due to frigid temperatures and snow — but organizers claim the fish are alive and swimming in a ...
Nausicaá Centre National de la Mer (French pronunciation: [nozika.a sɑ̃tʁ(ə) nɑsjɔnal d(ə) la mɛʁ]) is a public aquarium located in Boulogne-sur-Mer in northern France. It is the largest public aquarium of Europe [2] [note 1] and attracts more than 800,000 visitors each year. [6]
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