Acanthurus Tristis (Mimic Tang)
Reef compatible: Yes
Care level: Intermediate
Disposition: Semi-aggressive
Minimum tank size: 75 gallons
Mature size: 10 inches
Specifications
| Feature | Value |
|---|---|
| Species | Acanthurus Tristis |
| Reef Compatible | Yes |
| Care Level | Intermediate |
| Disposition | Semi-aggressive |
| Minimum Tank Size | 75 gallons |
| Mature Size | 10 inches |
FAQ
Is this tang suitable for a small tank?
No, this species requires a minimum tank size of 75 gallons and is not recommended for tanks smaller than that.
Does this tang get along with other fish in a reef tank?
Yes, it is reef compatible, but it is semi-aggressive and may not coexist well with very small or timid fish.
What is the expected mature size of this tang?
The mature size is approximately 10 inches.

Amelia McDonald –
Bought this tang for my 75-gallon reef tank. It’s active and colorful, and has adapted well to the environment. It doesn’t eat corals, which is a relief. Feeding is straightforward with high-quality flakes and spirulina.
Carol Metcalfe –
The fish looks great and stays calm most of the time. I noticed it occasionally nips at smaller fish, so I added a few larger, hardy species to avoid conflict. Overall, a good fit for intermediate reef setups.
Rachel Harris –
Arrived healthy and quickly settled into the tank. It’s a vibrant addition to the community. I feed it twice daily and it seems to thrive on a varied diet.