Damselfish Javanese Blue Streak

  • Javanese Blue Streak Damselfish (Neoglyphidodon oxyodon) is a striking and hardy saltwater fish known for its vibrant blue coloration. As juveniles, they display an intense electric blue hue with darker vertical bands.
  • This species thrives in water temperatures between 75°F and 82°F, with a pH range of 8.1 to 8.4.
  • Javanese Blue Streak Damselfish typically grow up to 5 inches in length and are best suited for tanks of at least 30 gallons.
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SKU: 5013

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Introduction: The Javanese Blue Streak Damselfish is a small, vibrant marine fish that adds striking color and energy to any saltwater aquarium. With its intense blue horizontal stripes running across its body, this damselfish is not only visually stunning but also relatively hardy and easy to care for. Native to the Indo-Pacific region, including the waters of Java, this species is ideal for beginner and experienced aquarists alike.

Scientific Name: The scientific name of the Javanese Blue Streak Damselfish is Neoglyphidodon oxyodon.

Water Quality and Temperature: Maintaining optimal water conditions is crucial for the health and longevity of the Javanese Blue Streak Damselfish:

  • Temperature: Keep the water temperature between 75°F to 82°F (24°C to 28°C).
  • pH Level: Maintain a pH level of 8.1 to 8.4, replicating the slightly alkaline conditions of their natural coral reef habitats.
  • Salinity: Aim for a specific gravity between 1.020 and 1.025.
  • Water Quality: Conduct regular water changes (10-20% weekly) to maintain high water quality and low levels of nitrates.

Feeding: The Javanese Blue Streak Damselfish is omnivorous and thrives on a varied diet:

  • Flakes and Pellets: Feed high-quality marine flakes and pellets designed for omnivorous fish.
  • Frozen or Live Foods: Supplement their diet with protein-rich options such as brine shrimp, mysis shrimp, and chopped krill.
  • Vegetable Matter: Incorporate some algae or seaweed into their diet to provide essential fiber.
  • Feeding Frequency: Feed 2 to 3 times daily in small portions to keep them active and healthy.

Tank Mates: Javanese Blue Streak Damselfish are known for being semi-aggressive, especially as they mature. Careful selection of tank mates is important to maintain harmony:

  • Suitable Tank Mates: Other fast-moving and similarly sized fish, such as clownfish, wrasses, and tangs, are good options.
  • Avoid Passive or Smaller Fish: More peaceful or slower species, such as gobies or small shrimp, may be harassed by the damselfish.
  • Territorial Behavior: Provide plenty of hiding spots to help reduce territorial disputes, especially in smaller tanks.

Substrates and Tank Decorations: A rocky substrate or coral rubble is ideal for creating a natural environment. Incorporate plenty of live rock and caves to mimic their natural reef habitat, providing hiding places and territories for the damselfish to claim.

Suitable Plants: While live plants are not necessary in a saltwater tank, the inclusion of macroalgae can help create a more natural environment and offer additional grazing material.

Sexing: Sexing Javanese Blue Streak Damselfish is challenging, as there are no easily visible differences between males and females. Behavior during breeding periods may be the best indicator, as males tend to become more territorial.

Breeding: Breeding in captivity is possible, but it requires careful preparation. Males become highly territorial and will select a nesting site, often a rock or crevice. After courting, the female lays eggs, which the male guards aggressively. The eggs will hatch within a few days, but protecting the fry can be difficult in a community tank.

Maximum Size and Longevity: Javanese Blue Streak Damselfish can grow up to 5 inches (12 cm) in length. With proper care, they can live for 5 to 8 years, providing long-term enjoyment for aquarists.

General Information: The Javanese Blue Streak Damselfish is a robust, colorful species that brings vibrancy to saltwater aquariums. While they can be territorial and assertive, their hardy nature and stunning appearance make them a popular choice for many marine hobbyists.

A Fun Fact: The Javanese Blue Streak Damselfish undergoes a color change as they mature. Juveniles often display more vivid blue and black stripes, while adults may show more muted colors, including yellowish-brown tones!

Family

Pomacentridae

Origin

Indo-Pacific

Social

Semi-Aggressive

,

Territorial

Breeding

Egglayer

Care Level

Intermediate

pH Level Aquarium pH measures water acidity/alkalinity. 7 is neutral. Fish have pH preferences; maintain ideal levels for their health and stability.

8.1 – 8.4

GH Level GH (General Hardness) in aquariums measures minerals like calcium and magnesium. It affects fish health by showing water\'s mineral content.

8 – 12 dGH

KH Level KH (Carbonate Hardness) in an aquarium stabilizes pH. It acts like a shield, keeping the water conditions just right for fish.

8 – 12 dKH

Temperature Ideal temperature needed for fish

24°C – 28°C

Life Span

5 – 8 Years

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