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A freshwater aquarium with plants and various tropical fish. An aquarium (pl.: aquariums or aquaria) is a vivarium of any size having at least one transparent side in which aquatic plants or animals are kept and displayed. Fishkeepers use aquaria to keep fish, invertebrates, amphibians, aquatic reptiles, such as turtles, and aquatic plants.
A marine aquarium is an aquarium that keeps marine plants and animals in a contained environment. Marine aquaria are further subdivided by hobbyists into fish only ( FO ), fish only with live rock ( FOWLR ), and reef aquaria. Fish only tanks often showcase large or aggressive marine fish species and generally rely on mechanical and chemical ...
Another early CCTV system was installed by Siemens AG at Test Stand VII in Peenemünde, Nazi Germany in 1942, for observing the launch of V-2 rockets. [ 10 ] In the United States, the first commercial closed-circuit television system became available in 1949 from Remington Rand and designed by CBS Laboratories , called "Vericon".
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DIY Space For London, Bermondsey – 160; The Leeds Club, Leeds – 150; The New Headingley Club, Leeds – 100; Dublin Castle, Camden, London – 150; Vintage Rockbar, Doncaster – 150; House of Detention, Clerkenwell, London – 130 [13] Sneaky Pete’s, Edinburgh - 100; Greencoat Place, Victoria - 100; Century Theatre Coalville ...
Periodic removal of the algae that has grown inside of an algae scrubber removes nutrients (ammonia, nitrate, phosphate) from the aquarium water, thus providing the needed filtration. An algae scrubber is a water filtering device (not to be confused with a scrubber pad used to clean glass) which uses light to grow algae ; in this process ...
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