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Neon tetras must be kept in groups of at least a half-dozen, as they are a shoaling species. With peaceful dispositions, they are also able to be kept with other species of non-aggressive fish. [36] 38 L (10 gal) [36] 68 to 79 F (20 to 26 C) [36] 6.0–7.0 [37] Ornate tetra: Hyphessobrycon bentosi: 4.5 cm (1.8 in) Penguin tetra, blackline ...
A. rivulatus is a popular fish in the aquarium trade and is noted for its hardiness, as well as its aesthetic appeal. [6] The fish may grow up to 30 cm (12 in) in length, though 15 to 20 cm (5.9 to 7.9 in) lengths are more typical, fish do not grow based on the size of their habitat. [7] A. rivulatus is an inherently
Characidae, the characids or characins, is a family of freshwater subtropical and tropical fish belonging to the order Characiformes. The name "characins" is a historical one, [2] but scientists today tend to prefer "characids" to reflect their status as a, by and large, monophyletic group (at family rank). To arrive there, this family has ...
A piranha or piraña (/ p ɪ ˈ r ɑː n j ə ˌ-r æ n /, or / p ɪ ˈ r ɑː n ə /; Portuguese: [piˈɾɐ̃ɲɐ], Spanish:) is any of a number of freshwater fish species in the family Serrasalmidae, [1] or the subfamily Serrasalminae within the tetra family, Characidae [2] in order Characiformes.
The guppy (Poecilia reticulata), also known as millionfish or the rainbow fish, [3] is one of the world's most widely distributed tropical fish and one of the most popular freshwater aquarium fish species. It is a member of the family Poeciliidae and, like almost all American members of the family, is live-bearing. [4]
The majority of the species in this family demonstrate conspicuous sexual dimorphism, with the males usually being the more colorful sex and also showing an elongated median fin ray. [ 1 ] Most species of rainbowfish are less than 12 cm (4.7 in) in length, with some species measuring less than 6 cm (2.4 in), while one species, Melanotaenia ...
Freshwater fish are fish species that spend some or all of their lives in bodies of fresh water such as rivers, lakes and inland wetlands, where the salinity is less than 1.05%. These environments differ from marine habitats in many ways, especially the difference in levels of osmolarity .
They feed extensively on smaller fish and invertebrates such as crabs. [6] Gars are found across much of the eastern portion of North America. [1] Although gars are found primarily in freshwater habitats, several species enter brackish waters and a few, most notably Atractosteus tristoechus, are sometimes found in the sea. Some gars travel from ...