Gem Tang (Zebrasoma gemmatum)
Reef compatible: Yes
Care level: Intermediate
Disposition: Semi-aggressive
Minimum tank size: 200 gallons
Mature size: 8.5 inches
Specifications
| Feature | Value |
|---|---|
| Species | Zebrasoma gemmatum |
| Size (L) | 4″ to 5″ |
| Reef Compatibility | Yes |
| Difficulty Level | Intermediate |
| Behavior | Semi-aggressive |
| Minimum Tank Size | 200 gallons |
| Mature Size | 8.5 inches |
FAQ
Is the Gem Tang suitable for a reef tank?
Yes, the Gem Tang is reef compatible and can coexist with reef fish in a properly maintained tank.
What is the expected mature size of this fish?
The Gem Tang reaches a mature size of 8.5 inches.
What is the recommended tank size for keeping a Gem Tang?
A minimum tank size of 200 gallons is required for proper growth and stability.



Sonia Bond –
I’ve had my Gem Tang for six months now. It’s active and colorful, and it doesn’t bother the other fish in the tank. The tank is 250 gallons, which is above the minimum requirement. It’s a good addition to a reef setup as long as there are no small, shy fish that might be at risk.
Kevin Morgan –
The fish arrived healthy and seems to be adjusting well. It’s semi-aggressive, so I made sure to keep it with larger, more robust tank mates. The coloration is vibrant and it’s a great focal point in the display.
Lisa Gibson –
After reading the care guide, I set up a 200-gallon tank with proper flow and hiding spots. The Gem Tang has been thriving and shows no signs of aggression toward the corals or other fish. Very satisfied with the purchase.