Yellow Tang

Zebrasoma flavescens

The yellow tang (Zebrasoma flavescens) is a bright yellow surgeonfish from coral and rocky reefs of the central Pacific, most strongly associated with the Hawaiian Islands. Its deep, flattened body, pointed grazing snout, and white blade-like spine at the base of the tail make it easy to recognize even before its color is considered. Wild yellow tangs spend much of the day picking film algae and turf from rock, then shelter in reef structure at night. Juveniles often use branching coral and rubble habitat, while adults may be seen singly or in loose groups.

Marine aquarists keep yellow tangs in established saltwater systems with strong filtration, stable water quality, open swimming room, and live rock for grazing. They still need regular sheets of marine algae, spirulina-based foods, and other plant-rich fare; they are not a substitute for solving nutrient problems in a neglected tank. Quarantine is wise because tangs can be prone to external parasites, and they may quarrel with similarly shaped tangs in cramped aquaria. Captive-bred yellow tangs are increasingly available, which gives buyers an alternative to wild collection where fisheries are restricted or debated.