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
| Size | Range |
|---|---|
| M | 3″ to 4″ |
FAQ
Is this fish suitable for a reef tank?
Yes, the Yellow Mimic Tang is reef compatible.
What is the expected mature size of this fish?
The mature size is 10 inches.
What is the recommended minimum tank size?
A minimum tank size of 50 gallons is required.

Una Bailey –
This tang has been in my 55-gallon tank for three months. It’s active and colorful, and it doesn’t eat corals. I appreciate its semi-aggressive behavior—it’s not overly aggressive but still defends its space. The color changes from yellow to chocolate as it matures, which is a nice transition.
Hannah Paterson –
I bought this for my reef tank and it’s doing well. It’s not the most active, but it’s peaceful enough. I noticed it grows slowly, and at 3.5 inches now, it’s still in the M size range. Good for intermediate reef keepers.
Joan Blake –
The fish arrived healthy and has been thriving. It’s a good fit in a 50-gallon tank with other tangs and small invertebrates. The coloration is vibrant and it’s not damaging any of the live rock.