Pearl Danio

Danio albolineatus, commonly known as the Pearl Danio, is a popular, hardy, and peaceful tropical freshwater fish belonging to the minnow family Cyprinidae. Native to clear, fast-flowing hill streams and rivers in Southeast Asia (including Myanmar, Thailand, and Sumatra), it is a favorite in the aquarium trade.

Key Characteristics and Appearance

• Size: Grows to an adult length of about 2 to 2.6 inches (5 to 6.5 cm).
• Lifespan: Lives for approximately 3 to 5 years.
• Coloration: Features a shimmering, iridescent body that shifts between purple, blue, pink, and silver, accented by a subtle horizontal golden or reddish stripe.
• Behavior: Highly active, surface-dwelling schooling fish that do best when kept in groups of six or more.

Ideal Aquarium Care

• Tank Size: Minimum aquarium size of 60 liters (15–20 gallons) with plenty of open swimming space.
• Water Parameters: Thrives in temperatures between 20–25°C (68–77°F), a pH range of 6.0–8.0, and water hardness up to 15 dGH.
• Environment: Prefers well-planted tanks with a dark substrate, which enhances their vibrant iridescent colors.
• Diet: Omnivorous and unpicky; accepts high-quality flakes, micro-pellets, and live or frozen foods like brine shrimp and daphnia.