Brackish
101Norwegian Current — The Norwegian Current (also known as the Norwegian Coastal Current) is a water current that flows north easterly along the Atlantic coast of Norway at depths of between 50 and 100 meters. It contrasts with the North Atlantic Current because it is …
102Coldwater fish — Coldwater fish, in the context of aquariums, refers to fish species that prefer cooler water temperatures than tropical fish, typically below 20 °C (68 °F). Some examples are koi and goldfish. These species tend to grow more slowly and live… …
103New Zealand mud snail — This article is about the invasive mudsnail Potamopyrgus antipodarum. For another mud snail from New Zealand, see Amphibola crenata. New Zealand mudsnail Lateral view of a Potamopyrgus antipodarum shell Conservat …
104Deep sand bed — A deep sand bed is[1] a filtration method used in some saltwater 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… …
105Substrate (aquarium) — Gravel in a freshwater aquarium The substrate of an aquarium refers to the material used on the tank bottom. It can affect water chemistry, filtration, and the well being of the aquarium s inhabitants, and is also an important part of the… …
106Ariidae — Taxobox name = Ariidae image width = 250px image caption = Bagre marinus regnum = Animalia phylum = Chordata classis = Actinopterygii ordo = Siluriformes superfamilia = Arioidea familia = Ariidae familia authority = L. S. Berg, 1958 subdivision… …
107Dither fish — The term dither fish refers to an arbitrary group of aquarium fish used by cichlid keeping aquarists to reduce innate timidity in some species of cichlids (Barlow, 1967). Dither fish swim around the top of a tank and this behavior lets shier fish …
108Perisesarma bidens — Taxobox | name = Perisesarma bidens regnum = Animalia phylum = Arthropoda subphylum = Crustacea classis = Malacostraca ordo = Decapoda infraordo = Brachyura familia = Grapsidae genus = Perisesarma species = P. bidens binomial = Perisesarma bidens …
109Nakaumi — 中海 Coordinates …
110Disease in ornamental fish — Ornamental fish kept in aquariums are susceptible to numerous diseases. The study of fish diseases has remained a rudimentary branch of veterinary medicine.[citation needed] Due to their generally small size and the low cost of replacing diseased …
