Not only do they have an eye-catching coloration, but they also feature iridescent scales that shimmer and sparkle when the light hits them just right. Their body is divided horizontally into a full blue upper body and full red lower body. They look very similar to Neon Tetra except that Cardinal Tetras grow larger and have their belly fully covered with red colors. The Cardinal Tetra is one of the most gorgeous fish in the aquarium hobby. This is because they need a very stable tank with minimum parameter fluctuations. They are easy to care for but are not beginner fish. They also have a peaceful temperament, making them an ideal addition to a community tank. These fish are incredibly beautiful to look at, with their bright red and blue colors. They also prefer to swim in the middle level of the aquarium, but will occasionally move up toward the surface and bottom when seeking food. They tend to be fairly timid, so they should not be kept with overly aggressive species or fish that are much larger than them.Ĭardinal tetras enjoy being in shoals of at least 6 individuals, which allows them to feel secure and comfortable. Its bright colors also help it blend in with its environment, making it harder for predators to spot them.Ĭardinal tetras are peaceful fish that get along well with other non-aggressive tankmates. The cardinal tetra has several unique features that help it survive in these waters, such as its long dorsal fin which helps them navigate swiftly through currents. They prefer to live in slow-moving waters with a neutral pH, low levels of pollutants, and plenty of vegetation. Cardinal Tetra fish are native to the rivers and streams of South America, primarily in the upper Orinoco and Negro Rivers Basins.
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