Acanthurus Olivaceus (The Orange Shoulder Tang)
Overview
- Native to the Indo-Pacific region, often found in coral reef environments and coastal lagoons.
- Recognized for its distinctive orange shoulder marking, which develops as it matures.
- Begins life with a solid yellow body, transitioning into a more muted grey-blue coloration in adulthood.
- Popular among marine aquarists for its unique color transformation and algae-grazing behavior.
Feeding
- Herbivorous diet, primarily grazing on marine algae.
- Requires a diet rich in plant-based foods, including seaweed, spirulina, and high-quality herbivore pellets.
- Supplementing with fresh vegetables or dried seaweed supports optimal health.
- Frequent feedings encourage natural grazing behavior and sustain energy levels.
Habitat
- Commonly found in coral-rich areas, reef slopes, and sandy lagoon environments.
- Prefers stable water conditions with high oxygen levels.
- Requires an aquarium with ample open swimming space and rock structures for grazing.
- Thrives in environments that mimic its natural surroundings with strong water movement.
Fish Care
- Optimal water temperature: 74-82°F (23-28°C).
- Ideal pH level: 8.1-8.4, with a specific gravity of 1.020-1.025.
- Prone to stress-related illnesses such as marine ich; requires pristine water conditions.
- Best introduced into a mature aquarium with excellent filtration and strong water flow.
- Providing ample swimming space and hiding areas reduces stress and supports long-term health.
Compatibility
- Generally peaceful but may become territorial towards other tangs.
- Compatible with peaceful tank mates such as wrasses, clownfish, and angelfish.
- Should not be housed with overly aggressive species that may cause stress.
- Does well in a community reef setup with proper space and hiding spots.
Aquarium Behavior
- Active swimmer, constantly patrolling the aquarium and grazing on algae.
- Can display territorial tendencies, particularly in confined spaces.
- Often interacts with other tank mates but may establish dominance over time.
- Providing an environment with live rock and algae supports natural behaviors.