Gem Tang

About this fish

Gem Tang is a marine tang fish sold under the shop name “Gem Tang,” with the scientific name Zebrasoma gemmatum. In a home aquarium, this species is typically used as an active grazing fish that helps consume algae-type foods and adds movement to a reef tank or well-established fish-only setup. As with many tangs, it generally does best in spacious systems with stable water quality and plenty of suitable food for long-term health and normal behavior.

Features:

• Herbivorous-grazing style of feeding, making it well-suited for diets that include algae-based foods
• Active swimmer that benefits from a roomy tank and efficient biological filtration
• Generally prefers an established aquarium environment rather than newly set-up tanks
• Pairs best with tankmates that won’t harass or outcompete it for food
• Helps maintain “grazing” behavior when provided with appropriate plant-based offerings

Specifications:

• Scientific name: Zebrasoma gemmatum
• Care level (general guidance): Intermediate
• Temperament (general guidance): Active; can be territorial toward similar-shape tangs
• System type: Marine (reef or fish-only) aquarium with strong biological filtration
• Diet (general guidance): Primarily plant/algae-based foods and other herbivore-appropriate fare
• Temperature (typical marine range): about 24–27°C
• Salinity (typical marine range): about 1.020–1.025 SG
• pH (typical marine range): about 8.1–8.4