Blue Moscow Guppy - Poecilia Reticulata

The Blue Moscow Guppy (Poecilia reticulata) is a highly sought-after guppy variety known for its rich, deep blue coloration that extends from head to tail. Males boast a velvety, iridescent blue sheen with flowing fins, while females are typically larger with more subtle color. Selective breeding has enhanced both the intensity and coverage of the blue, making this strain one of the most striking livebearers available.

Interestingly, careful line-breeding of Blue Moscows can lead to Black Moscow guppies—a closely related strain where the same dark pigment genes are expressed with greater density, creating an inky, metallic black appearance. Many breeders work between the two lines to maintain or develop deeper tones and improved genetics.

Easy to care for and endlessly active, Blue Moscow Guppies thrive in peaceful community tanks and are perfect for both beginner and advanced aquarists. They appreciate planted tanks with gentle flow, and their prolific breeding habits make them ideal for those interested in small-scale breeding projects.

Difficulty – Easy
Temperament – Peaceful
Size – Males up to 1.5 inches; females up to 2.5 inches
Tank Size – 10 gallons+ (larger if breeding)
Temperature – 74°F to 82°F
Diet – Omnivore (quality flakes, micro pellets, live/frozen foods)
pH – 6.8 to 7.8
💙 A brilliant, easygoing addition to planted or nano tanks, the Blue Moscow Guppy adds constant motion and a flash of sapphire beauty.

This listing is for 1 Blue Moscow Guppy – Poecilia reticulata