Falcula Butterflyfish, True

Falcula Butterflyfish, True
Latin name:
(Chaetodon falcula)

Care Level





Black, White, Yellow



Preferred Conditions

sg 1.020-1.025, 72-78° F, dKH 8-12, pH 8.1-8.4

Avg. Max Size


Minimum Tank Size


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Have you ever been captivated by the vibrant colors and graceful movements of butterflyfish? Among the most sought-after species for marine aquariums, the Falcula Butterflyfish stands out with its unique charm and captivating beauty. In this comprehensive guide, we’ll delve into the world of the Falcula Butterflyfish, exploring its characteristics, care requirements, and the secrets to creating an ideal habitat for this enchanting creature.

Characteristics of the Falcula Butterflyfish

The Falcula Butterflyfish, scientifically known as Chaetodon falcula, belongs to the Chaetodontidae family. Native to the tropical waters of the Indo-Pacific region, this fish is renowned for its striking appearance. Its body is adorned with vibrant colors, including shades of yellow, orange, and blue, while its dorsal fin features a distinctive black band. The Falcula Butterflyfish typically reaches a maximum length of around 6 inches, making it a suitable addition to medium-sized or larger marine aquariums.

Care Requirements for the Falcula Butterflyfish

Providing proper care for the Falcula Butterflyfish is essential for its well-being and longevity in captivity. Here are some key considerations to ensure optimal conditions for this delicate species:

  • Water Parameters: The Falcula Butterflyfish thrives in pristine water conditions. Maintain a stable pH level between 8.1 and 8.4, a temperature range of 72°F to 78°F, and a specific gravity of 1.020 to 1.025.
  • Aquarium Size: As mentioned earlier, the Falcula Butterflyfish requires a medium-sized or larger aquarium. A minimum tank size of 50 gallons is recommended to provide ample swimming space and prevent overcrowding.
  • Diet: The Falcula Butterflyfish is an omnivore with a varied diet. Offer a combination of live, frozen, and prepared foods, including brine shrimp, mysis shrimp, chopped seafood, and high-quality flake or pellet food.
  • Compatibility: The Falcula Butterflyfish can be a peaceful addition to a community aquarium, but it’s essential to choose compatible tankmates. Avoid aggressive or territorial species that may harass or harm the butterflyfish.

Creating an Ideal Habitat for the Falcula Butterflyfish

To create an ideal habitat for the Falcula Butterflyfish, consider the following elements:

  • Live Rock: Provide plenty of live rock in the aquarium, as it offers hiding places, grazing areas, and a natural environment for the butterflyfish.
  • Coral and Invertebrates: The Falcula Butterflyfish is generally reef-safe, making it compatible with various corals and invertebrates. However, it’s essential to research and select species that are suitable for the butterflyfish’s diet and behavior.
  • Lighting: The Falcula Butterflyfish prefers moderate lighting conditions. Avoid intense or direct lighting, as it can stress the fish.
  • Water Flow: Ensure adequate water flow in the aquarium to mimic the natural currents found in the butterflyfish’s native habitat.

FAQs About the Falcula Butterflyfish

Here are some frequently asked questions about the Falcula Butterflyfish that may help you make an informed decision before adding this captivating species to your aquarium:

  1. Q: Is the Falcula Butterflyfish a good choice for beginners?
    A: While the Falcula Butterflyfish is a beautiful and captivating species, it’s not recommended for beginner aquarists. Its specific care requirements and sensitivity to water conditions make it a more suitable choice for experienced hobbyists.
  2. Q: How can I prevent aggression between the Falcula Butterflyfish and other tankmates?
    A: To minimize aggression, introduce the Falcula Butterflyfish to the aquarium last, allowing it to establish its territory before adding other fish. Additionally, provide ample hiding places and ensure the aquarium is large enough to accommodate all tankmates comfortably.
  3. Q: What are some common diseases that affect the Falcula Butterflyfish?
    A: The Falcula Butterflyfish is susceptible to various diseases, including marine ich, velvet disease, and bacterial infections. Regular water changes, a balanced diet, and a stress-free environment can help prevent these ailments.


The Falcula Butterflyfish is a captivating and vibrant addition to any marine aquarium. Its striking colors and graceful movements make it a popular choice among aquarists. However, it’s essential to understand the specific care requirements and habitat needs of this delicate species before introducing it to your aquarium. With proper care and attention, the Falcula Butterflyfish can thrive and bring joy to your marine aquarium for years to come.