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 (M) | 3″ to 4″ |
| 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 recommended tank size for keeping a Gem Tang?
A minimum tank size of 200 gallons is required to ensure proper growth and stability.
How aggressive is the Gem Tang?
The Gem Tang is semi-aggressive and may display territorial behavior, especially during feeding or when stressed.



Frank Springer –
The Gem Tang has been in my 200-gallon reef tank for six months. It’s active and colorful, and doesn’t seem to harm other fish. I appreciate its compatibility with corals and other reef species. Feeding is straightforward, and it’s a great addition to a balanced tank.
Katherine Wright –
I bought this tang for my intermediate reef setup. It’s grown steadily and stays calm most of the time. I do notice it gets slightly territorial when food is shared, so I now feed it separately. Overall, a solid choice for a reef tank.
Cameron Nolan –
After a few weeks, the Gem Tang settled into the tank and started showing off its vibrant coloration. It’s not overly aggressive, and the tank remains stable. I’m happy with the purchase and would recommend it to others with similar setups.