Yellowtail Blue Damsel

Chrysiptera parasema

(17 Reviews)

Yellowtail Blue Damsel

Yellowtail Blue Damsel

Chrysiptera parasema

(17 Reviews)

Free Shipping

With $199.00 or more in Marine Life.
More details...

Care Facts

Care Level: Easy
Temperament: Semi-aggressive
Diet: Omnivore
Reef Safe: Yes
Minimum Tank Size: 30 gallons
Max Size: 3 inches

The Yellowtail Blue Damsel, Chrysiptera parasema, also known as the Yellow Tail Blue Damsel, features a bright blue body with a neon yellow tail that turns into translucent at the edges of the fins. 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. They are best introduced last into the tank as well. The Yellowtail Blue Damsel is very hardy and eats almost anything contributing to its lifespan of up to five years. The Yellowtail Blue Damsel is a versatile fish that will thrive in almost any home aquarium. 

Yellowtail Blue Damselfish (Chrysiptera parasema): A Comprehensive Guide to Saltwater Aquarium Care

Learn about how to take care of your Yellowtail Blue Damselfish from This guide will help you care for and nourish your new fish.


Habitat and Natural Environment of the Yellowtail Blue Damselfish


The Yellowtail Blue Damselfish, scientifically known as Chrysiptera parasema, originates from the Indo-Pacific region. In their natural habitat, these fish inhabit coral-rich areas, preferring sheltered spots within the intricate structures of coral reefs.


Reef Compatibility and Behavior of the Yellowtail Blue Damselfish


Considered reef safe, the Yellowtail Blue Damselfish adapts well to reef aquariums. Their behavior is characterized by a territorial nature, especially during breeding. In a captive environment, providing hiding spaces and ensuring a balanced mix of fish can mitigate aggressive tendencies.


Size, Lifespan, and Sexual Dimorphism of the Yellowtail Blue Damselfish


With an average size of around 2 inches, the Yellowtail Blue Damselfish is a petite yet vibrant addition to marine aquariums. Sexual dimorphism is minimal, with both sexes exhibiting similar coloration. Under proper care, these hardy fish can live up to 5 years.


Diet in Captivity of the Yellowtail Blue Damselfish


Yellowtail Blue Damsels are omnivores, accepting a varied diet. Marine pellets, flakes, and frozen foods like brine shrimp and mysis shrimp provide the necessary nutrients. Offering a diverse diet ensures their overall health and vibrancy.


Aquaculture and Availability of the Yellowtail Blue Damselfish prioritizes sustainable practices and provides aquacultured Yellowtail Blue Damselfish when available. Acclimated to tank life, these specimens are hardier and contribute to the conservation of wild populations. When wild-caught are available, they are collected using sustainable collection practices.


Tank Requirements for the Yellowtail Blue Damselfish


Maintaining optimal tank conditions is essential. A minimum tank size of 20 gallons is suitable for a single Yellowtail Blue Damselfish, and adding 10 gallons for each additional fish is recommended. Stable water parameters, including a pH of 8.1-8.4, salinity between 1.020 and 1.025, and a water temperature of 74°F to 78°F, are crucial. Moderate water flow mimics their natural habitat.


Juvenile to Adult Coloration Changes of the Yellowtail Blue Damselfish


Juvenile Yellowtail Blue Damselfish showcase a vibrant yellow tail, which intensifies as they mature. The body displays a stunning blend of blue and yellow, creating an eye-catching appearance in well-lit aquariums.


Common Names of the Yellowtail Blue Damselfish


Yellowtail Damsel
Blue Damselfish
Yellowtail Demoiselle


Compatible Tank Mates for the Yellowtail Blue Damselfish


Banggai Cardinalfish (Pterapogon kauderni) - Basic Husbandry: Gentle, tends to stay close to shelter, and suitable for a peaceful community tank.
Fire Goby (Nemateleotris magnifica) - Basic Husbandry: Peaceful, burrows in the substrate, and suitable for reef setups.
Green Chromis (Chromis viridis) - Basic Husbandry: Peaceful, forms schools, and suitable for reef aquariums.
Yellow Clown Goby (Gobiodon okinawae) - Basic Husbandry: Small and peaceful, suitable for nano reef setups, and perches on corals.
Royal Gramma (Gramma loreto) - Basic Husbandry: Peaceful, vibrant coloration, and suitable for reef setups.


Notes for New Hobbyists about the Yellowtail Blue Damselfish


Introduce Yellowtail Blue Damsels after establishing a stable tank environment.
Provide ample hiding spaces to reduce territorial aggression.
Regular water testing and maintenance are crucial for their well-being.


Why People Should Buy the Yellowtail Blue Damselfish from


Purchasing Yellowtail Blue Damselfish from ensures the acquisition of acclimated and healthy specimens. Our commitment to sustainable practices guarantees a positive impact on both your aquarium and the conservation of marine ecosystems. Visit our website for reliable sources of quality marine fish, contributing to the success of your saltwater aquarium.

Reviewed by: Thomas Bartles on Feb. 26, 2024

Reviewed by: Josh Thomas on Feb. 18, 2024

All were alive and healthy

Reviewed by: Happy Valentines Day Aguirre on Feb. 14, 2024

Arrived healthy

Reviewed by: Thomas Bartles on Feb. 11, 2024

Reviewed by: Anthony Scott on Jan. 31, 2024

Reviewed by: Daniel Small on Jan. 29, 2024

Reviewed by: Sam Macmillan on Jan. 16, 2024

All three I ordered were healthy and beautiful colors.

Reviewed by: Denise Nelson on Dec. 3, 2023

They're beautiful and healthy, their colors pop in my tank. Thank y'all for always standing behind your livestock products

Reviewed by: Eric Wilson on Nov. 19, 2023

Reviewed by: Lynn Adams on Nov. 5, 2023

Reviewed by: Lara Toronto on Sept. 21, 2023

Reviewed by: Brady Caspari on Aug. 8, 2023

Reviewed by: Richard Kenney on July 6, 2023


Reviewed by: Bryan Johnston on March 26, 2022

Great fish if you're looking for a splash of blue. VERY peaceful damselfish. He gets along with all his tank mates, including the Kupang Damselfish I added at the same time. Oftentimes he will swim with my two clowns.

Reviewed by: Barbara on Nov. 28, 2016

These are so cute,, a great addition for any tank. The color is so vibrant, they arrive healthy . Just a little acclamation time and you can enjoy them for years.

Reviewed by: Lou on Aug. 4, 2014

Contrary to popular belief I had had no problems with this damsel..I have heard that they are the meanest lil jerks and can be such pains...But this guy AI have had since start of my tank he has never attacked another fish he is never mean. Hes healthy hardy and been a great community addition!

Reviewed by: Ashley House on May 14, 2012

Join the club! Get our best deals first!

Be The First To Hear About Our Exclusive Deals & Latest Updates!