Neon tetras are generally captive-bred, with most coming from the Far East and Eastern Europe. Several varieties of captive-bred specimens are now available.
The neon tetra has a slender torpedo-shaped body that reaches no more than an inch and a half in length. What this fish lacks in size, it makes up for in color. The neon tetra has a bright neon blue stripe along its side. Below the blue stripe, it has a white-silver belly. Past the belly, a bright red stripe extends all the way to the tail. The striking red, white, and blue combination makes the neon tetra one of the most popular aquarium fish.