Common name: Whitespotted Surgeonfish

General Information

The Whitespotted Surgeonfish, scientifically known as Acanthurus guttatus, is a striking species well-regarded in the aquarium trade for its unique appearance and active nature. This fish boasts a distinctive pattern of white spots on a dark body, complemented by bold yellow and white markings on its dorsal and anal fins. Its vibrant coloration and dynamic behavior make it a popular choice among experienced aquarists.

In the wild, the Whitespotted Surgeonfish plays a vital role in maintaining the health of coral reefs by grazing on algae, which helps prevent algal overgrowth. This ecological contribution underscores its importance in both natural and captive environments, offering hobbyists a glimpse into its role in ecosystem balance.

Care

Acanthurus guttatus requires a spacious aquarium with plenty of swimming room and live rock for grazing. As a species that thrives in stable conditions, maintaining pristine water quality and a well-balanced environment is crucial. This species is best suited for larger tanks, ideally over 300 liters (75 gallons), to accommodate its active swimming habits and territorial nature.

Providing ample hiding spots and creating a natural reef setup with live rock will help mimic their natural habitat, offering them a sense of security and places to explore. Regular monitoring of water parameters and ensuring efficient filtration will contribute to their well-being.

Diet and Feeding

In the wild, Whitespotted Surgeonfish are primarily herbivorous, feeding on a variety of algae. In captivity, their diet should consist of high-quality marine algae, spirulina, and vegetable-based foods. Supplementing their diet with seaweed sheets and occasional treats of mysis shrimp or brine shrimp can provide additional nutrition and variety.

Feed them several times a day in small portions to mimic their natural grazing behavior. This frequent feeding schedule helps maintain their health and vibrant coloration.

Behavior and Compatibility

Whitespotted Surgeonfish are generally peaceful but can become territorial, especially in smaller tanks or when housed with other tangs. They are best kept with a mix of other peaceful reef-safe species. Their active nature and grazing habits make them compatible with a wide range of community fish and invertebrates.

While not aggressive, they may exhibit territorial behavior if their space is invaded, particularly by similar-shaped fish. Providing adequate space and establishing clear territories can help mitigate these issues.

Health and Common Issues

Acanthurus guttatus can live for several years in captivity with proper care. Key to their health is maintaining excellent water quality and a balanced diet. Regular observation for signs of stress or disease is important, as they can be susceptible to common marine ailments such as ich.

When selecting a Whitespotted Surgeonfish, look for individuals with vibrant colors and active swimming behavior. Avoid fish with signs of stress or disease, such as faded coloration or labored breathing.

Habitat

The Whitespotted Surgeonfish is native to the tropical Indo-Pacific region, commonly found in coral-rich lagoons and outer reef slopes. They thrive in environments with abundant algal growth, which supports their natural grazing habits.

In captivity, replicating these conditions with ample live rock and stable water parameters will support their health and natural behavior.