Neon Blue Danio

Introduction: Welcome to the vibrant world of the Neon Blue Danio, an eye-catching and energetic freshwater fish known for its striking coloration and active behavior. Scientifically named Sundadanio axelrodi, this small and lively fish is native to the freshwater streams of Borneo. Its shimmering blue body with distinct black vertical stripes makes it a captivating addition to any aquarium.

Scientific Name: The Neon Blue Danio is scientifically known as Sundadanio axelrodi, and it is commonly referred to as the Neon Blue Danio or Axelrod’s Danio.

Water Quality and Temperature: To ensure the health and vitality of your Neon Blue Danio, maintain the following water parameters:

• Temperature: Keep the water temperature between 74°F to 78°F (23°C to 26°C).
• pH Level: Maintain a pH level between 6.5 and 7.5 to replicate their natural slightly acidic to neutral habitat.
• GH Level: Aim for a general hardness (GH) level of 5 to 12 dGH.
• KH Level: Keep the carbonate hardness (KH) within the range of 2 to 8 dKH to maintain stable water conditions.

Feeding: The Neon Blue Danio is an omnivorous species and enjoys a varied diet. Provide the following:

• Pellets: High-quality flake or pellet food formulated for small freshwater fish.
• Live or Frozen Foods: Offer live or frozen foods such as brine shrimp, daphnia, or bloodworms for added protein.
• Vegetables: Occasionally supplement their diet with blanched vegetables like spinach or zucchini for added fiber.

Tank Mates: The Neon Blue Danio is a peaceful and social fish that does well with a variety of tank mates. Suitable companions include other small, non-aggressive fish such as tetras, rasboras, and small catfish. Avoid larger or more aggressive fish that may intimidate or outcompete them.

Substrates and Tank Decorations: A fine gravel or sandy substrate is ideal for the Neon Blue Danio. Incorporate plenty of swimming space and include decorations such as rocks, driftwood, and plants to create a natural and stimulating environment. They appreciate having some cover but also need open areas for swimming.

Suitable Plants: Neon Blue Danios benefit from a well-planted tank, which provides hiding spots and improves water quality. Hardy plants such as Java Fern, Anubias, and Amazon Sword are good choices. Floating plants like Hornwort can also provide additional cover and shade.

Sexing: Sexing Neon Blue Danios can be challenging, but generally, females are slightly larger and rounder, especially when carrying eggs. Males tend to be more brightly colored and may display more vivid blue and black patterns.

Breeding: Breeding Neon Blue Danios is relatively straightforward in the right conditions. They are egg scatterers and will lay eggs among plants or in the substrate. Provide a separate breeding tank with fine-leaved plants or a spawning mat. After spawning, remove the adults to prevent them from eating the eggs. The eggs will hatch in about 2 to 3 days, and the fry will become free-swimming within a week. Provide fine food like powdered fry food or infusoria for the young fish.

Maximum Size and Longevity: Neon Blue Danios typically grow to about 1.5 to 2 inches (4 to 5 cm) in length. With proper care, they can live up to 3 to 5 years in captivity.

General Information: The Neon Blue Danio is a vibrant and hardy fish that adds color and activity to any aquarium. Known for their energetic swimming patterns and striking blue coloration, they are well-suited to community tanks and are relatively easy to care for. Their lively nature and compatibility with a range of tank mates make them a favorite among aquarium enthusiasts.

A Fun Fact: The Neon Blue Danio’s bright blue coloration is due to the presence of specialized pigment cells called iridophores, which reflect and scatter light to produce their shimmering effect. This dazzling display not only adds beauty to the tank but also helps the fish stand out in the aquarium.