More info
Datasheet
| Minimum Tank Size | 800 litres / 211.34 US gallons |
| Maximum Size | 18.0cm / 7.09inches |
| Reef Compatible | Not reef safe |
| Temperament | Mostly peaceful 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 Blackback Butterflyfish, known scientifically as Chaetodon melannotus, belongs to the Chaetodontidae family and is characterized by its striking black-backed coloration. These fish are part of a complex within the Chaetodon genus, often displaying similarities but crucial differences in their requirements and origins, emphasizing the importance of proper identification in the aquarium setting.
Aquarium Suitability
The Blackback Butterflyfish poses moderate demands on its caretakers, requiring a tank size of at least 800 liters. Given its propensity for consuming tubeworms and potentially nibbling at clams, particularly Tridacna species, caution is advised when housing them with certain invertebrates. These fish may also need hiding spots initially and ample swimming space to thrive.
Care and Hardiness
With an average level of hardiness, these butterflyfish demand experienced care due to their specific needs and behaviors. They can coexist peacefully in pairs if introduced simultaneously but might display aggression towards similar species. To ensure their well-being, it is crucial to provide a varied diet, including macroalgae and small crustaceans.
Reef Suitability
Regrettably, the Blackback Butterflyfish is deemed not reef-safe, as they have a tendency to target corals and other invertebrates within the reef environment. Their diet primarily comprises soft corals, making them incompatible with most reef setups.
Aquarium Setup
Setting up an aquarium for Blackback Butterflyfish should include ample hiding spaces, as well as areas for comfortable swimming. The tank should be adequately sized, at least 800 liters, to accommodate their need for space. Monitoring water conditions closely, within the ranges of pH 8.1-8.4, alkalinity 8-12 dKH, and a temperature of 22.2-25.6°C, is crucial for their well-being.
Behaviour
Typically peaceful in temperament, the Blackback Butterflyfish may exhibit territorial behavior towards resembling species if not part of a pair. However, they generally ignore other tank mates and thrive in harmonious, multi-species environments within the aquarium.
Feeding and Diet
Feeding these butterflyfish can be challenging initially, as they may resist non-natural foods. Offering live zooplankton, mussels with crushed shells, or mimicking their foraging behavior by placing food in coral skeletons can aid in their acclimatization. Their diet mainly consists of live SPS or LPS corals, emphasizing the need for careful selection of tank mates.
Habitat and Distribution
In the wild, Blackback Butterflyfish are native to the Indo-Pacific region, ranging from the Red Sea and East Africa to Samoa, Japan, and Lord Howe Island. They can be found throughout Micronesia, dwelling near coral reefs where they feed on various invertebrates, including tubeworms and anemones.