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Growing to about 3 cm (1.2 in) total length, the cardinal tetra has the striking iridescent blue line characteristic of the genus Paracheirodon laterally bisecting the fish, with the body below this line being vivid red in color, hence the name "cardinal tetra". The cardinal tetra's appearance is similar to that of the closely related neon ...
The green neon tetra (P. simulans) and black neon tetra (Hyphessobrycon herbertaxelrodi) are distinct species—the latter belongs to a different genus—and not color varieties. The cardinal tetra ( P. axelrodi ) is also a similar species, but its greater extent of red coloring distinguishes it from the neon tetra. [ 28 ]
Paracheirodon tetras reach maximum overall lengths of 2.5 to 5 cm (0.98 to 1.97 in) depending on the species, and are of elongated, tetra shapes. All share a distinctive iridescent blue lateral line, but differ slightly in their other colorations.
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 ]
Cardinal tetra; I. Neon tetra; S. Green neon tetra This page was last edited on 29 October 2023, at 18:55 (UTC). Text is available under the Creative ...
Pages in category "Tetras of Brazil" The following 55 pages are in this category, out of 55 total. ... Cardinal tetra; Cochu's blue tetra; Copella arnoldi; Copella ...
In fact, several species, including cardinal tetras, show the adaptive trait of iridescence which may provide lower visibility in a blackwater environment. [ 4 ] Project Piaba started with an ecological baseline study of the region which was conducted in 1989 by a group of researchers and students from the Universidade do Amazonas (UA) and the ...
Hemigrammus erythrozonus, commonly known as the glowlight tetra, is a small tropical fish from the Essequibo River, Guyana, South America.It is silver in colour and a bright iridescent orange to red stripe extends from the snout to the base of its tail, the front of the dorsal fin being the same color as the stripe.