Keyhole Angel (Centropyge tibicen)

The Keyhole Angelfish (Centropyge tibicen), also known as the Tibicen Angelfish or Black Angelfish, is a bold and resilient species, making it a fantastic addition to both reef and fish-only aquariums. This striking fish is named for the prominent white “keyhole” marking on its otherwise deep black body, creating a unique and eye-catching contrast. Native to the Indo-Pacific, this hardy dwarf angelfish is an active swimmer that thrives in well-established aquariums with plenty of rockwork for grazing and shelter.

Key Features:

• Scientific Name: Centropyge tibicen
• Common Name: Keyhole Angelfish, Tibicen Angelfish, Black Angelfish
• Size: Typically grows up to 7 inches in length
• Diet: Omnivorous; thrives on a varied diet of marine pellets, algae-based foods, and live or frozen foods such as mysis shrimp and brine shrimp
• Temperament: Semi-aggressive; best housed with similarly tempered species
• Habitat: Ideal for reef or fish-only tanks with ample live rock for grazing and hiding
• Care Level: Easy to Moderate; suitable for aquarists of all experience levels

Why Choose the Keyhole Angelfish (Centropyge tibicen)?

The Keyhole Angelfish is an excellent choice for aquarists looking for a hardy and visually striking marine fish. Its contrasting black and white colouration makes it stand out in any setup, while its active nature keeps the tank lively. Though semi-aggressive, this species adapts well to a variety of environments and can be kept successfully in large reef tanks with careful monitoring.

Care Tips:

• Water Parameters: Maintain stable water conditions with a temperature of 75°F - 80°F (24°C - 27°C), pH between 8.1 - 8.4, and salinity levels of 1.023 - 1.025. Regular water changes and strong filtration are essential for optimal health.
• Feeding: Keyhole Angelfish require a balanced omnivorous diet. Provide high-quality marine pellets or flakes, supplemented with frozen foods such as mysis shrimp, brine shrimp, and spirulina-based foods. Offer seaweed sheets occasionally to promote natural grazing. Feed 2-3 times daily.
• Tank Setup: A tank of at least 70 gallons is recommended to provide ample swimming space. Include plenty of live rock for grazing and structured hiding areas.
• Behaviour: Semi-aggressive, particularly towards other angelfish or similarly shaped species. Best kept singly or with carefully selected tank mates to avoid territorial disputes.

Perfect for Reef and Large Community Tanks:

The Keyhole Angelfish is a resilient and active addition to marine aquariums, offering both beauty and natural algae control. While reef-safe with caution, it can thrive in a well-maintained reef or fish-only system with the right tank mates.

Order Your Keyhole Angelfish Today:

Add the bold beauty and energetic presence of the Keyhole Angelfish to your marine aquarium. Browse our selection and place your order today to receive a healthy, vibrant fish that will thrive in your aquatic environment.