Yellow Mimic Tang (Chocolate Tang When Adult)
Acanthurus pyroferus
Reef Compatible: Yes
Care Level: Intermediate
Disposition: Semi-aggressive
Min. Tank Size: 50 gallons
Mature Size: 10 inches
Size Information
| Age | Size |
|---|---|
| Young | 4″ to 5″ |
| Adult | Up to 10 inches (Chocolate coloration) |
FAQ
Is this tang suitable for a reef tank?
Yes, the Yellow Mimic Tang is reef compatible and can coexist with coral in a properly maintained reef tank.
What is the expected growth rate of this fish?
This tang grows from 4″ to 5″ when young and reaches up to 10 inches in maturity.
Is it aggressive toward other fish?
The fish is semi-aggressive and may display territorial behavior, especially during feeding or when establishing dominance.

Charles Peters –
The fish arrived healthy and active. It has been in my 55-gallon tank for three months and is thriving. The coloration changes nicely as it matures, and it doesn’t seem to bother the other fish much. Good for intermediate reef keepers.
Simon Gray –
It’s a beautiful fish with a great color shift from yellow to chocolate. I noticed it’s a bit territorial with smaller tangs, so I made sure to keep it in a larger tank with plenty of space.
Sebastian Glover –
Easy to care for once the tank is set up. It’s active and helps keep the tank clean by grazing on algae. The mature color is impressive and adds a nice contrast to the reef.