Javanese (Blue Velvet) Damsel

Paraglyphidodon oxyodon

(8 Reviews)

Javanese (Blue Velvet) Damsel

Javanese (Blue Velvet) Damsel

Paraglyphidodon oxyodon

(8 Reviews)

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Care Facts

Care Level: Easy
Temperament: Semi-Aggressive
Diet: Omnivore
Reef Safe: Yes
Minimum Tank Size: 30 gallons
Max Size: 4 inches

The Javanese Damsel is popularly known as the Black Velvet Damsel or the Blue Velvet Damsel. It features striking coloration when young, and has flashy neon colored electric-blue horizontal stripes dashed across its face and upper body. However, as the Javanese Damsel grows, the stripes fade away and becomes grayish blue color overall. It is considered an easy fish for a beginner, and needs its own territory unless kept in a larger tank. The Javanese Damsel is an omnivore and can be fed on all kinds of live, frozen, and flake foods and algae, and also is best to feed small amounts several times a day. As it grows, the Javanese Damsel becomes more aggressive and territorial which becomes little difficult to introduce new similar damselfishes. Although, there is no distinct feature between male and female, the Javanese Damsel has been bred in captivity, and should be kept in a tank not less than 30 Gallons. It is hardy and can tolerate adverse water conditions in a new aquarium, which makes it a very good addition to any reef tank. In order to keep the Javanese Damsel at peace, it is necessary to provide them their own rock work and hiding places. Due to its size, it can become food for many fishes such as Eels, Groupers, Lionfish and Scorpionfish. Seahorses and Pipefish, Sharks and Rays, which should not be housed with the Javanese Damsel. 


Japanese Blue Velvet Damsel: Comprehensive Guide to Keeping the Javanese Blue Velvet Damsel (Paraglyphidodon oxyodon)


Welcome to the captivating world of saltwater aquariums, where the Javanese Blue Velvet Damsel (Paraglyphidodon oxyodon) stands out as a striking and dynamic addition. In this detailed guide, we'll provide valuable insights into the habitat, reef compatibility, size, lifespan, diet, aquaculture availability, compatibility with other species, coloration changes, temperament, tank requirements, and essential water conditions for successful care of this species.


Habitat and Natural Behavior


The Javanese Blue Velvet Damsel, native to the Indo-Pacific region, is commonly found in reef environments, especially around rocky and coral-rich areas. Their natural behavior is characterized by an active and social nature, making them a fascinating choice for marine enthusiasts.


Reef Compatibility


Known for their reef-safe behavior, Javanese Blue Velvet Damsels are ideal for marine aquariums with a focus on coral diversity. Their small size and non-aggressive temperament contribute to a balanced community environment.


Size and Lifespan


Javanese Blue Velvet Damsels typically reach sizes of up to 3 inches (7.6 cm) and have a lifespan of approximately 5 to 8 years in captivity. Providing proper care and meeting their specific needs contribute to their longevity.


Diet in Captivity


In captivity, Javanese Blue Velvet Damsels are omnivores with a preference for a varied diet. High-quality flake or pellet food forms the basis of their diet, supplemented with frozen or live options such as brine shrimp and mysis shrimp to ensure optimal nutrition and coloration.


Aquaculture and Availability


The availability of aquacultured Javanese Blue Velvet Damsels has increased, contributing to their sustainable acquisition for hobbyists. Aquacultured specimens are generally more adaptable to aquarium life, enhancing their chances of thriving in a home environment.


Compatibility with Tank Mates


Javanese Blue Velvet Damsels exhibit a peaceful temperament, making them compatible with a variety of tank mates. Here are five compatible tank mates:

  1. Clownfish (Amphiprion ocellaris): Provide anemone shelters and maintain stable water conditions.
  3. Royal Gramma (Gramma loreto): Include rockwork for hiding and territorial spaces.
  5. Banggai Cardinalfish (Pterapogon kauderni): Include shelter and low-light areas.
  7. Firefish Goby (Nemateleotris magnifica): Provide hiding spaces and a sandy substrate.
  9. Chalk Bass (Serranus tortugarum): Offer rocky shelters and maintain stable water conditions.

Sexual Dimorphism


Sexual dimorphism in Javanese Blue Velvet Damsels is minimal, with males and females displaying similar coloration and size.


Juvenile to Adult Coloration Changes


Juvenile Javanese Blue Velvet Damsels often exhibit more subdued colors, which intensify and become more vibrant as they mature into adulthood. Expect a stunning combination of blue and yellow hues that add visual appeal to your aquarium.


Tank Requirements


Minimum Aquarium Size: A tank with a capacity of 30 gallons or more is recommended to provide ample space for the active swimming behavior of Javanese Blue Velvet Damsels.


Water Conditions:

  • pH: Maintain a stable pH level between 8.1 and 8.4.
  • Salinity: Keep salinity within the range of 1.020 to 1.025.
  • Water Temperature: Maintain a temperature between 74°F and 78°F.
  • Water Flow: Moderate water flow resembling their natural habitat is ideal for promoting a healthy environment.

Other Common Names


Javanese Blue Velvet Damsels are also known as Oxyodon Damsels, Javane Damsel, Blue Velvet Damsel, and the Black Velvet Damsel.


Notes for New Hobbyists


For new hobbyists, establishing a stable and mature aquarium is crucial before introducing Javanese Blue Velvet Damsels. Regular water testing, proper filtration, and adherence to recommended water parameters contribute to the overall health and well-being of your marine community.


Why Choose the Javanese Blue Velvet Damsel from


At, we prioritize offering healthy and vibrant marine life. Our commitment to sustainability is reflected in providing aquacultured Javanese Blue Velvet Damsels, reducing the impact on wild populations. With a stringent selection process, you can trust to deliver a quality Javanese Blue Velvet Damsel for your thriving marine community. Visit our website to make a conscientious choice for your saltwater aquarium.

Only my second one of these ever, and gotta say, pretty fish. SWF does a great job of providing healthy fish with great color. At first I was a little weary of internet SWF, but this is my 3rd order and I’d say it’s done 100% right!

Reviewed by: Freddy Fam on June 27, 2023

Reviewed by: David Orear on June 27, 2023

I LOVE this fish! The picture doesn't do it justice. Mine darts around the tank and almost glitters under my lights. It's gorgeous and I would highly recommend it.

Reviewed by: Larissa Amber on July 9, 2017

Verry nice looking fish

Reviewed by: Anthony Poser on June 21, 2017

Reviewed by: Jerry Alderson on Oct. 21, 2014

I ordered one of theses guys. Love him. Very healthy. You can't go wrong with

Reviewed by: Stephen Whitney on Sept. 2, 2014

Beautiful and healty. Very flashy fish. Perfect for my tank.

Reviewed by: Stephen Whitney on Aug. 28, 2014

Both of these arrived very healthy and ready for their new home. Saltwaterfish does a great packing and shipping job.

Reviewed by: Lou on Aug. 4, 2014

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