Metallic Cobra Guppy (Poecilia reticulata)

31 August 2026

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The Metallic Cobra Guppy is a selectively bred color variant of the common guppy, Poecilia reticulata. Known for its striking, iridescent scales and intricate, snake-like patterns on the tail and body, this livebearing fish is a staple in the aquarium hobby. They are hardy, adaptable, and highly active, making them an excellent choice for both beginner and experienced fishkeepers alike.

Metallic Cobra Guppy (Poecilia reticulata)

Taxonomy and Distribution

The guppy, Poecilia reticulata, belongs to the family Poeciliidae. While the wild type originates from freshwater streams and pools in South America, the Metallic Cobra variety is a product of extensive selective breeding in captivity. These fish do not exist in this specific color form in nature and are strictly ornamental varieties developed for the aquarium trade.

Aquarium Requirements

Guppies are active swimmers that thrive in well-filtered tanks. A minimum tank size of 40 to 60 liters is recommended to allow for their energetic behavior. They prefer planted aquariums, which provide essential hiding spots for fry. Maintain stable water parameters within the recommended temperature and pH ranges, ensuring regular partial water changes to keep nitrate levels low.

Diet and Feeding

As omnivores, Metallic Cobra Guppies are not picky eaters. They readily accept high-quality flake foods, micro-pellets, and frozen treats such as daphnia, brine shrimp, or bloodworms. Providing a varied diet that includes vegetable matter, such as algae-based flakes, helps maintain their vibrant coloration and overall health.

Behavior and Compatibility

Guppies are peaceful, schooling fish that are best kept in groups. They are excellent community inhabitants and can be safely kept with other small, non-aggressive species like tetras, corydoras, or rasboras. Avoid housing them with large or fin-nipping fish that might target their long, flowing tails.

Breeding

Guppies are prolific livebearers. Females can store sperm and produce multiple broods from a single mating. No specific intervention is required for them to breed. If the aquarium is well-planted, some fry will typically survive to adulthood without special care, as the parents may prey on their own offspring if they are not provided with enough cover.

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