Goldtail Half Blue Damsel

Chrysiptera cf parasema

(0 Reviews)

Goldtail Half Blue Damsel

Goldtail Half Blue Damsel

Chrysiptera cf parasema

(0 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: 3 inches
The Goldtail Half Blue Damsel, Chrysiptera cf parasema, also known as the GoldTail Blue Damsel, features a bright blue body with striking yellow gold coloring on the bottom fins and rear end of the body. They are very similar looking to the Yellowtail blue damsel but the yellow runs further up their body and along the ventral fins giving them more contrast. They are a prime community reef fish that live best in small groups of at least three or more, or else they can become territorial. The Goldtail Blue Damsel is very hardy and eats almost anything contributing to its lifespan of up to five years. This Damsel is a versatile fish that will thrive in almost any home aquarium. 


Goldtail Half Blue Damsel - Chrysiptera cf parasema


The Goldtail Half Blue Damsel, scientifically known as Chrysiptera cf parasema, is a captivating addition to saltwater marine aquariums, prized for its vibrant coloration and relatively low maintenance. This species hails from the Indo-Pacific region and has gained popularity among hobbyists for its hardiness and striking appearance. This comprehensive guide will provide valuable insights into various aspects of keeping the Goldtail Half Blue Damsel, covering its habitat, compatibility, tank requirements, and more.


Habitat of the Goldtail Half Blue Damsel


In its natural habitat, the Goldtail Half Blue Damsel can be found in coral-rich areas of the Indo-Pacific, often dwelling in sheltered lagoons and coastal reefs. When replicating its environment in captivity, consider incorporating live rock structures to provide ample hiding spaces and create territories within the aquarium.


Reef Compatibility of the Goldtail Half Blue Damsel


Known for its peaceful disposition, the Goldtail Half Blue Damsel is generally considered reef-safe, making it an excellent choice for enthusiasts who maintain coral-dominated tanks. However, temperament may vary, and caution should be exercised when introducing it to more aggressive tank mates.


Size and Lifespan of the Goldtail Half Blue Damsel


This species typically reaches a mature size of 2 to 3 inches, making it well-suited for smaller aquariums. The Goldtail Half Blue Damsel can live up to 5 years or more in captivity with proper care.


Diet in Captivity of the Goldtail Half Blue Damsel


Goldtail Half Blue Damsels are omnivores and exhibit a hardy appetite. A well-balanced diet should include high-quality flakes, pellets, and frozen foods such as brine and mysis shrimp. Regular feeding will ensure their vibrant coloration is maintained and overall health is sustained.


Aquaculture and Availability of the Goldtail Half Blue Damsel


The Goldtail Half Blue Damsel is commonly aquacultured, contributing to its availability in the aquarium trade. This practice ensures healthier specimens and minimizes the impact on wild populations. is proud to offer aquacultured Goldtail Half Blue Damsels, providing enthusiasts with a sustainable and responsible option.


Compatibility of the Goldtail Half Blue Damsel


This species is generally compatible with various tank mates, but their temperament should be carefully considered. Here are five compatible tank mates for the Goldtail Half Blue Damsel:

  • Firefish Goby (Nemateleotris magnifica): Peaceful and adds diversity to the tank.
  • Royal Gramma (Gramma loreto): Shares the peaceful temperament and adds vibrant color.
  • Clownfish (Amphiprion species): Known for their symbiotic relationships with anemones.
  • Banggai Cardinalfish (Pterapogon kauderni): A slow-moving and peaceful species.
  • Cleaner Shrimp (Lysmata amboinensis): Helps maintain tank cleanliness and forms a symbiotic relationship.

Sexual Dimorphism of the Goldtail Half Blue Damsel


Goldtail Half Blue Damsels do not exhibit significant sexual dimorphism, making it challenging to distinguish between males and females visually.


Juvenile to Adult Coloration Changes in the Goldtail Half Blue Damsel


Juveniles typically display a more subdued coloration, with a pale blue body and a yellow tail. As they mature, the body develops a deeper blue hue, and the tail intensifies in its golden-yellow color.


Temperament of the Goldtail Half Blue Damsel


This damsel species is known for its peaceful nature, but territorial behavior may be observed, especially during the initial introduction to the aquarium. Adequate hiding spots and proper acclimatization can help minimize stress and aggression.


Tank Requirements of the Goldtail Half Blue Damsel

  • Minimum Aquarium Size: A 20-gallon tank suits an individual Goldtail Half Blue Damsel. Larger tanks are recommended for multiple specimens.
  • Water Conditions:
    • pH: Maintain a stable pH level between 8.1 and 8.4.
    • Salinity: Keep the salinity in the range of 1.020 to 1.025.
    • Water Temperature: Maintain a temperature between 75°F and 82°F.
    • Water Flow: Provide moderate water flow to simulate the natural reef environment.

Other Common Names for the Goldtail Half Blue Damsel


Azure Damselfish


Half-Blue Damselfish


Why Choose is a trusted source for acquiring the Goldtail Half Blue Damsel for your aquarium. With a commitment to sustainable practices, they offer aquacultured specimens, ensuring the health and well-being of the fish while minimizing the impact on natural populations. Their extensive experience and dedication to customer satisfaction make them a reliable choice for enthusiasts seeking quality marine life.


In conclusion, the Goldtail Half Blue Damsel is a captivating and accessible choice for saltwater aquariums. Its vibrant coloration, compatibility with reef environments, and ease of care make it an ideal addition for novice and experienced hobbyists. When acquired from a reputable source like, you can trust that you are contributing to the health of your aquarium and the sustainability of marine life in the hobby.

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