More info
Datasheet
| Minimum Tank Size | 400 litres / 105.67 US gallons |
| Maximum Size | 16cm / 6.30inches |
| Reef Compatible | Often 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 Tomini surgeonfish, scientifically known as Ctenochaetus tominiensis, belongs to the Acanthuridae family. It is characterized by its specialized teeth that allow it to scrape organic material off rocks and stones in addition to consuming algae. These fish are generally less active and peaceful compared to other surgeonfish, making them suitable for smaller aquariums where they contribute to maintaining a balance in the ecosystem.
Aquarium Suitability
The Tomini surgeonfish is suitable for aquariums with care, requiring a minimum tank size of 400 liters. These fish acclimatize best when introduced at a juvenile stage and appreciate ample hiding spots, especially when newly introduced. They thrive in well-established aquariums with plenty of algae for grazing, and their primary diet should consist of algae-based foods to support their immune system.
Care and Hardiness
With average hardiness, these surgeonfish species require a well-maintained environment with appropriate water conditions, including a pH level of 8.1-8.4, a specific gravity ranging from 1.020 to 1.025, and a temperature between 22.2-25.6°C. Offering them a varied diet that includes macroalgae like seaweed or nori, as well as microalgae such as spirulina, is crucial for their well-being.
Reef Suitability
Tomini surgeonfish are often considered reef-safe and rarely bother corals or invertebrates. However, they may display aggression towards similar species, so care should be taken when housing them with other surgeonfish in a reef setting.
Aquarium Setup
Setting up an aquarium for Tomini surgeonfish involves providing ample sand and rocks, along with hiding places. It is essential to ensure there is sufficient algae on the rocks for grazing. Additionally, maintaining a well-run system with proper filtration and regular water changes is key to their overall health and happiness.
Behaviour
Known for their peaceful demeanor, Tomini surgeonfish can exhibit aggression towards similar species. They spend their time swimming around the tank and nibbling on algae, contributing to the cleanliness of the aquarium. Establishing a hierarchy when multiple surgeonfish are present is common, with the most aggressive species typically taking precedence.
Feeding and Diet
These fish primarily feed on detritus, small crustaceans like krill, mysis, and artemia, along with various types of algae. Offering them a diet rich in algae-based foods like seaweed, nori, and spirulina is essential to maintain their health and immune system.
Dimorphism
Tomini surgeonfish may exhibit color variations, with some species being more vibrant at a younger age. However, their colors may fade as they mature, usually around 3 inches (7-8 cm) in size.
Habitat and Distribution
In the wild, the Tomini surgeonfish can be found in the Western Central Pacific region, including Indonesia, the Philippines, Papua New Guinea, the northern Great Barrier Reef, Solomon Islands, Palau, Vanuatu, Fiji, and more recently recorded in Tonga. They inhabit areas with ample rocks and stones for grazing and organic material scraping.