X-ray tetras, also known as Pristella maxillaris, are small freshwater fish native to South America. They are named for their translucent bodies, which allow their skeletal structures to be visible, giving them an "x-ray" appearance.
X-ray tetras typically grow to be around 1.5 inches (4 cm) in length and have a lifespan of around 3-4 years. They are peaceful and social fish, often found in groups of 6 or more in the wild and in aquariums. They are also relatively easy to care for, as they do well in a variety of water conditions and are not picky eaters.
In terms of appearance, X-ray tetras have a silver body with a black stripe running horizontally through the center of their body. They also have a bright white dorsal fin, making them a popular choice for aquarium enthusiasts. Overall, X-ray tetras are a beautiful and interesting addition to any freshwater aquarium.
