Rock Beauty Angelfish

Holocanthus tricolor

(0 Reviews)

Rock Beauty Angelfish

Rock Beauty Angelfish

Holocanthus tricolor

(0 Reviews)

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Rock Beauty Angelfish Care Facts

Care Level: Expert
Temperament: Semi-Aggressive
Diet: Omnivore
Origin: Caribbean
Acclimation Time: 3+ Hours
Reef Safe: Monitor
Coral Safe: Monitor
Invertebrate Safe: Monitor
Minimum Tank Size: 100+ Gallons
The Rock Beauty Angelfish, Holocanthus tricolor, displays a contrasted body color of a bright yellow head and tail with a black back half and distinctive yellow/orange outlines on the fins and electrics blue accents in the eyes. Some adults even have black lips. Like many large Angelfish their appearance will change dramatically from the juvenile to adult stage. Due to aggression towards other Angelfish they are best kept singly but will do well with other larger fish.

They are not reef safe, as they will nip at soft and stony polyp corals, sessile invertebrates and clam mantles. Diet should include a variety of spirulina, marine algae, high quality angelfish preparations, mysis and brine shrimp, 3 times daily.

Keeping the Rock Beauty Angelfish (Holacanthus tricolor) in Your Saltwater Aquarium

The Rock Beauty Angelfish, scientifically known as Holacanthus tricolor, is a captivating and vibrant species that can be a remarkable addition to your saltwater aquarium. This comprehensive guide will provide essential information for enthusiasts interested in keeping the Rock Beauty Angelfish. We will cover various aspects of their care, including habitat, reef compatibility, size, lifespan, dietary requirements in captivity, aquaculture availability, compatibility with other marine species, sexual dimorphism, juvenile to adult coloration changes, temperament, detailed tank requirements, and precise water conditions. Additionally, we will list common names for this species and highlight the practical benefits of choosing the Rock Beauty Angelfish from

Habitat and Natural Range

The Rock Beauty Angelfish is native to the warm and tropical waters of the Western Atlantic Ocean. They are primarily found in regions ranging from Florida to Brazil and throughout the Caribbean Sea. In their natural habitat, they inhabit coral reefs, rocky outcrops, and crevices, often seeking shelter among the rocky formations and corals.

Reef Compatibility

While the Rock Beauty Angelfish is undoubtedly a striking addition to a saltwater aquarium, it's crucial to note that they are not considered reef-safe. These angelfish have a natural inclination to nip at sessile invertebrates such as corals and certain sponges. Therefore, keeping them in a fish-only or a FOWLR (Fish Only With Live Rock) aquarium is advisable, where they can thrive without threatening corals and other immobile marine life.

Size and Lifespan

Rock Beauty Angelfish are relatively small compared to other angelfish species, typically reaching lengths of up to 8 inches (20 centimeters) in captivity. They can have a lifespan of 10 to 15 years with proper care, providing aquarium keepers with years of enjoyment and beauty.

Diet in Captivity

To ensure your Rock Beauty Angelfish's health and vibrancy, providing a well-balanced diet that mimics their natural feeding habits is crucial. Offer the following foods in their daily diet:

  • High-Quality Marine Pellets: Rock Beauty Angelfish can be trained to accept high-quality marine pellets designed for omnivorous marine fish.
  • Frozen and Fresh Foods: Supplement their diet with various frozen and fresh offerings, such as brine shrimp, mysis shrimp, krill, and enriched frozen preparations.
  • Vegetable Matter: As omnivores, these angelfish benefit from marine algae and plant matter, such as seaweed sheets or clips. This provides essential nutrients and helps maintain their health.

Aquaculture and Availability

While some Rock Beauty Angelfish are available through aquaculture, a significant portion of the aquarium trade is still sourced from the wild. To promote responsible and sustainable practices, choosing reputable suppliers like is advisable.

Compatibility with Other Fish and Invertebrates

Rock Beauty Angelfish can be somewhat territorial and may display aggression towards other angelfish or similar-looking species. However, with careful consideration, they can coexist with compatible tankmates. Here are five species that can be compatible with Rock Beauty Angelfish:

  • Yellow Tang (Zebrasoma flavescens): Yellow tangs are known for their peaceful nature and can coexist in larger aquariums with Rock Beauty Angelfish.
  • Blue Damsel (Chrysiptera cyanea): These small, colorful fish are generally compatible with Rock Beauty Angelfish.
  • Sergeant Major Damselfish (Abudefduf saxatilis): These hardy fish can share an aquarium with Rock Beauty Angelfish without significant issues.
  • Niger Triggerfish (Odonus niger): Larger tanks with plenty of hiding spots can support a peaceful cohabitation between Rock Beauty Angelfish and Niger Triggerfish.
  • Harlequin Tuskfish (Choerodon fasciatus): In sufficiently large aquariums, Harlequin Tuskfish can coexist with Rock Beauty Angelfish.

Sexual Dimorphism

Rock Beauty Angelfish does not exhibit significant sexual dimorphism, making it challenging to distinguish between males and females visually.

Juvenile to Adult Coloration Changes

Juvenile Rock Beauty Angelfish have a distinctive appearance, characterized by their vibrant yellow bodies and striking black vertical bars that extend from the back to the belly. As they mature into adults, their coloration transforms. Adult Rock Beauty Angelfish develop a striking pattern with bright yellow bodies and a distinctive blue-black mask covering their eyes and upper body. The adult Rock Beauty Angelfish's vibrant colors and unique patterns make them a standout species in any aquarium.

Tank Requirements

To provide an optimal environment for your Rock Beauty Angelfish, adhere to these tank requirements:

  • Minimum Aquarium Size: A tank with a capacity of at least 120 gallons (465 liters) is recommended for a single Rock Beauty Angelfish. A larger tank offers more swimming space and promotes a stable environment.
  • Decor and Hiding Places: Incorporate live rock structures, caves, and hiding spots to create a secure environment for your angelfish. These structures can help reduce stress and aggression.
  • Water Conditions: Maintain stable water conditions with the following parameters:
    • pH: 8.1 to 8.4
    • Salinity: 1.020 to 1.025
    • Water Temperature: 74°F to 78°F (23°C to 26°C)
    • Water Flow: Moderate water flow is ideal, replicating the conditions of their natural habitat.

List of Common Names

The Rock Beauty Angelfish is known by various common names, including:

  • Tricolor Angelfish
  • Multicolor Angelfish
  • Rock Beauty

Why Choose the Rock Beauty Angelfish from

When selecting the Rock Beauty Angelfish for your saltwater aquarium, sourcing from a reputable supplier like is essential. Here's why:

  • Quality Assurance: is committed to providing healthy, high-quality marine fish, including Rock Beauty Angelfish. Their rigorous selection process ensures that you receive vibrant and disease-free specimens.
  • Expert Guidance: The experts at can offer valuable advice and guidance on the care and maintenance of your Rock Beauty Angelfish, ensuring a successful and enjoyable aquarium experience.
  • Sustainability: By choosing, you support responsible and sustainable practices in the aquarium trade, helping to conserve marine ecosystems.

In conclusion, the Rock Beauty Angelfish is a captivating species that can add vibrant colors and elegance to your saltwater aquarium. With proper care, a suitable tank environment, and a well-balanced diet, you can enjoy the beauty and grace of this remarkable fish for years to come. When considering the acquisition of a Rock Beauty Angelfish, trust the expertise and quality of for a rewarding aquarium experience.

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