More info
Datasheet
| Minimum Tank Size | 400 litres / 105.67 US gallons |
| Maximum Size | 18.0cm / 7.09inches |
| Reef Compatible | Not reef safe |
| Temperament | Docile but might be aggressive towards similar species |
| Temperature | 22.2°C / 71.96°F - 25.6°C / 78.08°F |
| Specific Gravity | 1.020-1.025 |
| Carbonate Hardness | 8-12 |
| pH | 8.1-8.4 |
General Description
The Redtail Butterflyfish (Chaetodon collare) belongs to the Chaetodontidae family and is known for its attractive patterns and colors, closely related to Angelfish but distinguished by the lack of spines on the head. These fish primarily feed on large polyp stone corals and soft corals and are native to the Indo-West Pacific region, ranging from the Persian Gulf to Japan, the Philippines, and Indonesia.
Aquarium Suitability
The Redtail Butterflyfish is considered suitable for aquariums with caution due to acclimatization challenges, especially for small specimens that might struggle to accept food initially. It is recommended to acquire medium-sized or fully grown individuals to increase their chances of survival in captivity.
Demands, Care, and Hardiness
This species requires a well-established aquarium with hiding spots and ample space for swimming. They are docile but may exhibit aggression towards similar species. Feeding multiple times a day is essential, especially during acclimatization, with a varied diet containing live zooplankton, mussels, and live corals. They thrive in water conditions with pH levels between 8.1-8.4, dKH of 8-12, specific gravity of 1.020-1.025, and a temperature range of 22.2-25.6°C.
Reef Suitability
Redtail Butterflyfish are not considered reef-safe as they may nibble on clams, eat tubeworms, and primarily feed on coral polyps, posing a risk to coral reef ecosystems within the aquarium.
Aquarium Setup
To accommodate Redtail Butterflyfish, a large tank of at least 400 liters is recommended. The aquarium should have live corals, mussels, and zooplankton as potential food sources initially, alongside algae-rich foods like Spirulina. Ensuring the presence of algae on rocks and supplementing the diet with larger crustaceans, macroalgae, microalgae, and other invertebrates is crucial for their well-being.
Behaviour
Redtail Butterflyfish are shy and peaceful fish that prefer to graze on algae from rocks and stones, requiring a peaceful environment and suitable tank mates to thrive. They should be introduced simultaneously in multiples if kept together.
Feeding and Diet
These fish primarily feed on coral polyps, necessitating a well-prepared supply of various food types in captivity. They have a preference for live corals, mussels, and zooplankton initially and may require time to adjust to alternative foods.
Habitat and Distribution
Found in the East Indian Ocean, West Indian Ocean, Australia, Japan, Indonesia, and the Central/West Pacific regions, the Redtail Butterflyfish inhabits coral-rich environments, preying on anemones, tubeworms, and bristleworms in the wild. Their distribution ranges from the Maldives to the Philippines, showcasing adaptability to diverse marine habitats.