Neon Tetras or Paracheirodon Innesi are extremely popular Tetras in the hobby. They are originally from South America. They grow to be about 1.6 inches when fully grown and are occasionally confused with Cardinal Tetras due to similar coloration. However, they are much easier to maintain than Cardinals.
Neon Tetras are extremely easy to keep and can adjust to a wide variety of water conditions. This is probably one of the things that makes them so popular. They tolerate a wide PH range from 5.0-7.5 and prefer temperatures of 70-78 degrees Fahrenheit. They are easy to feed and will accept both small live foods and dry foods preferring a variety of both. Being a schooling species they need to be kept with at least 6 of their own kind, and the more you have of them the better. They are also extremely peaceful and can be kept with many other non-aggressive fish of similar size and temperament. They are relatively easy to sex. When fully grown the females will be larger in size and a bit rounder bodied than the males. They will breed in freshwater captivity, but are not considered an easy species to breed.
Neon Tetras are a beautiful and fun addition to your aquarium. Their colors make them very attractive, and their fun personalities make them interesting to watch. Due to their hardiness, they make great fish for beginners as well as an interesting species for experienced aquarists.