Guttatus Tang

Acanthurus guttatus

Identification	Distinctive dark brown to black anterior body transitioning to a lighter, spotted rear half. White spots cover the posterior body and fins in a pattern unique among tangs.
Maximum Length	Up to 11 inches (28 cm)
Origin	Indo-Pacific — Hawaii, Johnston Atoll, Polynesia
Minimum Tank Size	150 gallons
Reef Compatible	Yes

Behavior

A moderately peaceful tang found in surge zones and shallow reef flats in the wild. Tends to school naturally. Adapts reasonably well to aquarium life when given adequate space. Not commonly kept but an interesting addition for the experienced hobbyist.

Diet & Feeding

Herbivore. Naturally grazes on turf algae in high-energy wave zones. Provide dried seaweed daily, spirulina, and algae-based prepared foods.

Cautions

Less commonly available than other tangs. Needs good water flow and ample swimming room.