![]() ![]() The physical differences between males and females are very subtle. These fish are very colorful with some unique variations that exist as well (such as gold and silver). ![]() ![]() For Neons, the red color only marks half of the body.Īll of the fins on the Cardinal Tetra are transparent. The main difference between Cardinal Tetras and Neon Tetras is the length of this stripe. It runs the entire length of the body and even bleeds into the transparent tail. It has an iridescent finish, making it glow in the right lighting conditions.ĭirectly below the blue stripe is a thicker band of bright red. Running from the tip of the nose to the tail, the blue stripe shimmers in the light. Like the Neon, these fish have two distinct stripes of red and blue. The Cardinal Tetra is a slender fish with a torpedo-shaped profile. Many people actually mistake Cardinal Tetras for Neon Tetras, and it’s not hard to see why! These two species have very similar appearances. Failure to address their needs could result in stress, disease, and even premature death. When kept in captivity, Cardinal Tetras need stable conditions to live long lives. In many areas, they’re believed to be an annual species with a very short lifespan! The typical Cardinal Tetra lifespan is between four and five years when healthy.Īuthor Note: Interestingly enough, these fish are known to live longer in captivity than in the wild. Peaceful by nature, Cardinal Tetras make wonderful additions to community tanks big and small. Though, their distribution is quite vast. They’re mostly found in the Orinoco and Negro rivers. In the wild, these fish form groups of hundreds, creating large schools of moving color!Īuthor Note: Even in small groups, Cardinal Tetras will gather and exhibit some beautiful shoaling behavior.Ĭardinal Tetras reside in throughout South America. Like their similar-looking cousin, the Neon Tetra, Cardinal Tetras are frequently bred in captivity, resulting in large numbers of fish in the trade. Known for their bright coloration and relatively lax husbandry needs, these fish do very well in both natural tanks. The Cardinal Tetra (scientific name: Paracheirodon axelrodi) is a stunning freshwater fish that can liven up any aquarium. ![]()
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