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The rummy-nose tetra (Petitella rhodostoma) is a species of tropical freshwater characin fish originating in South America, popular among fishkeepers as a tropical aquarium fish. [2] One of many small tetras belonging to the same genus, it is on average 5 cm (2 in) long when fully grown. [3]
A group of 6 fishes will feel comfortable in a 15-gallon tank, but a bigger tank (preferably 30 gallons) and more fishes are recommended. According to the Encyclopedia of Aquarium and Pond Fish, it prefers water of 23–28 °C (73–82 °F) that is soft (50–100 mg/L) and acidic (pH 5.6-6.9), and a diet of prepared foods and small live foods. [2]
Copella arnoldi, commonly known as the splash tetra or the splashing tetra, is a species of tropical freshwater fish belonging to the family Lebiasinidae. [ 1 ] [ 2 ] It is native to South America. The fish is named in honor of German aquarist Johann Paul Arnold (1869–1952), who collected the type specimen.
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).
[2] [3] This freshwater fish is commonly kept in aquariums and bred in large numbers at commercial facilities in Eastern Europe and Asia. [4] The redeye tetra is one of the more popular aquarium fish due to their schooling capability. It can grow up to 7 cm (2.8 in) in length, [4] and live for approximately 5 years. [3]
The emperor tetra is a placid aquarium fish and will be disturbed by more boisterous species. It grows to 4.2 cm. [3] It prefers a pH of 6.5, a hardness of 3–6 dKH and a temperature of 23–27 °C. It does not school as readily as most tetras, and a pair appears happier than with most tetras.
The Congo Tetra is a moderately hardy freshwater fish. This species thrives in a well-maintained aquarium that mimics its natural, slightly acidic and soft-water habitat. Optimal health for Congo Tetras is achieved in a stable environment with good water quality, a balanced pH level of around 6.0 to 7.5, and temperatures between 72°F and 82°F.
Boehlkea fredcochui, also known as the Cochu's blue tetra is a species of characin.Its natural range is in the Amazon Basin.It is commonly kept as an aquarium fish. [1] [2]The fish is named in honor of tropical fish importer Ferdinand (Fred) Cochu of the Paramount Aquarium, who introduced this species to the aquarium hobby around 1956.