LEOPARD DANIO | BRACHYDANIO FRANKEI

The Leopard Danio (Brachydanio frankei) is a hardy, active, and beautifully patterned freshwater fish known for its energetic swimming and distinctive leopard-like spots. A close relative of the popular Zebra Danio (Danio rerio), this variety features an elegant golden or silver body covered in small, dark spots rather than stripes—giving it a wild, spotted appearance that makes it instantly recognizable. Originating from selectively bred forms of the Zebra Danio, the Leopard Danio is equally tough, fast-moving, and perfectly suited for both beginner and experienced aquarists.

Adult Leopard Danios typically reach about 2–2.5 inches (5–6 cm) in length and are highly social, thriving in schools of at least six or more. Their lively nature, constant motion, and shimmering spotted bodies make them excellent display fish for both community and species-only tanks.

Ideal water parameters:
Temperature: 65–78°F (18–26°C)
pH: 6.5–7.5
Hardness: 5–15 dGH

Tank setup:
Leopard Danios prefer well-oxygenated water with moderate flow and open swimming space. A 20-gallon or larger tank is recommended for a school. They appreciate planted aquariums with hardy plants like Anubias, Vallisneria, or Java Fern, along with some driftwood or rocks for cover. They are tolerant of a wide range of water conditions and even thrive in unheated tanks, making them an excellent choice for cooler environments.

Diet:
These danios are omnivorous and easy to feed. Provide a varied diet of high-quality flakes or micro-pellets, supplemented with live or frozen foods such as brine shrimp, daphnia, and bloodworms. Occasional vegetable-based foods or spirulina flakes enhance coloration and vitality.

Temperament and tankmates:
Leopard Danios are peaceful but very active. They make ideal companions for other lively, non-aggressive fish such as white cloud minnows, barbs, rasboras, tetras, and corydoras. Avoid slow-moving, long-finned species that may be stressed by their fast-paced activity.

Breeding:
They are egg scatterers and easy to breed in captivity. In a separate breeding tank, provide fine-leaved plants or spawning mops where the female can release eggs. Adults do not care for their eggs, so removing them after spawning helps increase fry survival. Eggs typically hatch in 2–3 days, and fry can be fed infusoria or powdered fry food.

In summary, the Leopard Danio (Brachydanio frankei) is a hardy, playful, and beautifully patterned schooling fish that brings constant energy and sparkle to freshwater aquariums. Its spotted pattern, resilience, and easygoing nature make it a perfect choice for aquarists seeking a lively, low-maintenance, and visually appealing community fish.