These are tiny creatures, making them a great fish for nano tanks. The typical size of a glowlight tetra is around 1.5 inches in length when fully grown. To keep your fish happy and healthy for as long as possible, you need to be vigilant about providing top-notch care.Īuthor Note: Purchasing your fish from a trustworthy seller will also improve the chance that they enjoy a long lifespan. Like any other freshwater species, glowlights will react negatively to poor diets, dirty tanks, and substandard water conditions. This is definitely on the shorter side of things when you compare them with other tetra species. The average glowlight tetra lifespan is between two and four years when given proper care. Females are typically a bit larger and feature a plumper body shape. But the upper iris has the bold coloration the fish is known for.ĭifferences between male and female glowlight tetras are subtle. Most of the eye is silver to match the rest of the body. One cool thing about this stripe is that it even crosses through the eye. Under the right lighting conditions, the stripe will really shine! You’ll also notice the same color on the edge of the dorsal fin. It goes all the way from the front of the head to the tip of the tail.Īuthor Note: The stripe looks like the filament of a light bulb, which is how this species got its common name. This becomes quite apparent when you look at them up close.īut the most identifying feature of this species is their reddish-orange stripe! The stripe runs laterally along the entire length of the fish. It takes on a silvery base color that you can see right through. However, most of the body is semi-transparent. At first glance, it looks very similar to its more popular cousins, the neon tetra and cardinal tetra. The glowlight tetra has a torpedo-shaped body. Like many freshwater species from this area, glowlight tetras are surprisingly hardy and easy to care for. They inhabit blackwater rivers and streams. The glowlight tetra is endemic to the rivers of Guyana in South America. As a shoaling species, glowlight tetras regularly group up and dart around the tank to create an eye-catching display of color. Because these are such colorful fish, they can really liven up the appearance of any freshwater aquarium.
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