Gem Tang WYSIWYG

Gem Tang

Widely considered one of the most sought-after tangs in the marine aquarium hobby, the Gem Tang is prized for its jet-black body covered in brilliant white spots and striking yellow tail accents. Rare, elegant, and instantly recognizable, the Gem Tang makes an exceptional centerpiece fish for serious reef keepers.

🟢 Quarantined (Minimum 2 Weeks) – Fully Conditioned & Eating

WYSIWYG Specimen

✔ Exact Fish Shown in Listing Video
✔ Size: Extra Large
✔ In Our Care Since: July 29, 2026
✔ Conditioned & Actively Eating
✔ Currently Housed at Lush Corals

Quick Facts

• Care Level: Moderate
• Temperament: Semi-aggressive
• Reef Compatibility: Reef Safe
• Minimum Tank Size: 125 gallons
• Size: Ranging from approximately 4–9 inches at adult size

Behavior & Husbandry

Gem Tangs are active swimmers that require ample open swimming space combined with mature rockwork for grazing and security. They are constantly on the move throughout the aquarium and quickly become a focal point due to their unique appearance and confident behavior.

Like most tangs, they can become territorial toward other tangs, particularly those with similar body shapes. In larger aquariums with proper aquascaping, they generally integrate well with a wide variety of reef-safe fish.

Providing excellent water quality, strong flow, and a mature environment will help ensure long-term success.

Feeding & Diet

Primarily herbivorous with omnivorous tendencies.

What We Feed at Lush Corals:

• Nori
• Frozen mysis shrimp
• Enriched frozen foods
• High-quality pellets

In Your Aquarium:

• Nori or macroalgae
• Herbivore pellets
• Frozen foods

Frequent feedings and regular access to algae-based foods help maintain body weight, coloration, and overall health.

Compatibility Notes

Compatible with:

• Wrasses
• Clownfish
• Foxfaces
• Angelfish
• Most reef-safe fish

Use caution with:

• Other tangs, especially Zebrasoma species
• Similar-shaped algae grazers in smaller systems

Best introduced into larger aquariums with plenty of swimming room and established rockwork.

Lush Corals Quarantine & Conditioning Process

This fish has completed our full quarantine and conditioning protocol (minimum 2 weeks) prior to being made available.

During this process, each fish is:

• Carefully observed and stabilized
• Proactively treated and monitored
• Conditioned onto prepared foods
• Verified to be actively eating and thriving

This extended process significantly reduces stress and increases long-term success, ensuring you receive a fish that is healthy, stable, and truly ready for your reef.

We don’t rush fish to market—every quarantined fish we offer has been given the time it needs to succeed in your aquarium.