Appearance: The metal blue tail guppy typically has a metallic blue coloration on its tail fin, often accompanied by other colors on its body, such as red, yellow, or green. The metallic sheen is caused by reflective guanine crystals in the fish's scales.

Size: Guppies are relatively small fish, typically growing to around 1.5 to 2.5 inches (3.8 to 6.4 cm) in length, with males usually being smaller and more colorful than females.

Temperament: Guppies are peaceful and social fish that can be kept in community aquariums with other peaceful fish species. However, males may exhibit some aggression towards each other, especially if there are multiple males and not enough females to spread their attention.

Diet: Guppies are omnivores and will eat a variety of foods, including flakes, pellets, frozen foods, and live foods like bloodworms or brine shrimp. A varied diet helps ensure their overall health and color vibrancy.

Habitat: Guppies are native to freshwater streams and ponds in South America, particularly in countries like Brazil, Guyana, and Venezuela. In the wild, they inhabit areas with dense vegetation and relatively slow-moving water.

Breeding: Guppies are prolific breeders, and females can store sperm from a single mating to fertilize multiple batches of fry. They are livebearers, meaning they give birth to free-swimming fry rather than laying eggs. Breeding guppies can be relatively easy, but it's essential to provide hiding places for the fry to avoid predation by adult fish.

Aquarium Care: Guppies are relatively hardy and can tolerate a wide range of water conditions. However, they prefer slightly alkaline water with a pH between 7.0 and 8.0 and a temperature between 72°F and 82°F (22°C to 28°C). Regular water changes and maintenance are crucial for keeping guppies healthy and vibrant.

Varieties: Guppies come in a wide range of colors and patterns, and breeders have developed numerous fancy varieties through selective breeding. The metal blue tail guppy is one such variety prized for its striking coloration.