Often described as the jewel of fishkeeping, the Green Neon Tetra (Paracheirodon simulans) is arguably one of the most popular freshwater species because of its pleasant appearance that is hard to find elsewhere. When you visit the pet store, make sure to choose fish that are active and brightly colored because faded colors are an indication of sick fish. Their bright appearance will start fading at night when they are resting, when they feel threatened, or when they get ill. Cardinal tetras have a red stripe that runs their bodies’ entire length, from tail to mouth. The critical difference between the two species is that stripe. Their striking colors make it one of the most popular fish in aquariums worldwide, rivaled only by the cardinal tetra, their nearest cousin, which looks almost entirely alike. Males and females have slightly different appearances when fully mature, in that females are slightly shorter than males, although they do get a little broader during the breeding season. Beyond the stomach, their bright red stripe runs the length of the tail. The average length can measure anywhere from 1.5 inches to 2 inches.īelow their blue stripes, neon tetra fish have a white silver belly. Fish eyes are massive in proportion to their heads, and their noses are entirely round. They have a slender, torpedo-shaped body. It gives off the impression that the fish is biologically sick. When they feel threatened, they can skillfully switch off their blue and red markings to an iridescent appearance. Apart from blue and red coloring, they have mostly transparent body, a feature that allows it to hide from predators in the wild. Their red stripe is a distinguishing trait that helps you tell them apart from other tetras. The first thing you will notice is their turquoise blue line that stretches from their eyes down to their adipose fin (a tiny fin located between the dorsal fin and the tail). Neon Tetras are prized after their stunning appearance. They prefer to hang out in the middle of the aquarium, so you should carefully select the tank mates. This freshwater fish belongs to the Characidae family and is relatively docile enough to get along with most community fish. Over 2 million of these are sold in the US every month, the vast majority of which come from captivity. They’ve been heavily bred in captivity since then, renowned for their dazzling color and energetic demeanor. Neon Tetras, also known as neon fish, were first imported from Amazonian freshwaters. Final Thoughts Species Overview Level of Care Very Easy Temperament Generally peaceful with other fish Appearance Clear fins and tail, blue and red color Life Expectancy Can live for 8 to 10 years or more if you provide the right condition Size Reach a size of 1.5 inches and a max of 2 inches Diet Omnivorous species Family Characidae Tank Size 10 gallons Tank Environment Modest freshwater tank with heavy plantation Tank Mates Very peaceful with other community fish.
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