More info
Datasheet
| Minimum Tank Size | 1500 litres / 396.26 US gallons |
| Maximum Size | 50cm / 19.69inches |
| Reef Compatible | Always reef safe |
| Temperament | 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 Lieutenant surgeonfish, also known as the Doubleband surgeonfish, belongs to the Acanthuridae family. They are herbivorous fish primarily living off various types of algae and are recognized for their scalpel near the caudal fin, used for defense.
Aquarium Suitability
The Lieutenant surgeonfish poses higher demands in terms of tank size, surroundings, and water quality compared to fish in the Zebrasoma genus. They require a well-established aquarium with ample space for swimming and grazing on algae-rich rocks and stones. It is crucial to provide hiding spots, especially when introducing them into a new aquarium.
Demands, Care, and Hardiness
With an average hardiness level, these fish are suitable for aquariums but require specific care. They prefer a diet consisting mainly of algae-based foods to maintain a healthy immune system. Understanding their aggressive tendency towards similar species is essential for successful tank management.
Reef Suitability
Lieutenant surgeonfish are always reef safe, rarely causing harm to corals or invertebrates. However, caution is advised when introducing multiple aggressive species to the same aquarium to prevent stress-related fatalities.
Aquarium Setup
Setting up an aquarium for Lieutenant surgeonfish involves providing a well-maintained environment with sufficient algae growth on rocks and stones. Supplementing their diet with algae-rich foods like seaweed or Spirulina is crucial for their health and well-being.
Behaviour
These fish spend their time swimming around the tank and nibbling on algae. They establish hierarchical structures when added with more surgeonfish, with the most aggressive species joining the tank last. Creating ample hiding spaces allows them to have their individual sleeping areas.
Feeding and Diet
Lieutenant surgeonfish rely on a diet of macroalgae like seaweed and microalgae such as Spirulina. While they can consume a variety of frozen foods, maintaining an algae-based diet is vital for their overall health and immunity.
Dimorphism
Acanthurus species may mimic various angelfish as juveniles to avoid predators. Adult identification can be challenging based on this mimicry behavior, as they are known to be difficult to distinguish from pictures alone.