Tomini Tang

Ctenochaetus tominiensis

(5)

Share Your Photos

Add your photos to help others

Suggested Tank

70+ gallons

Max Size

6 inches

Difficulty

Medium

Temperament

Semi-Aggressive

Description

The Tomini Tang is a colorful, medium-sized saltwater fish popular among aquarium hobbyists. It is known for its vibrant colors, with a body that transitions from a tan color at the head to a dark brown towards the tail. It has blue and yellow accents along its dorsal and anal fins.

Reef Safe

Yes, Tomini Tangs are considered reef safe and are often used in reef tanks to help control algae growth.

Environment

Tomini Tangs thrive in a well-established aquarium with plenty of live rock for grazing and hiding. They require a tank with plenty of swimming space.

Behavior

Tomini Tangs are generally peaceful but can exhibit territorial behaviors, especially towards other tangs or similar-looking fish. They are active swimmers and spend most of their time grazing on algae in the tank.

Information might not be complete or accurate. Help the community by suggesting corrections.

Owner Reviews

LaurenBys

Lauren

@LaurenBys

2 months ago
Overall Rating:
Would Buy Again: 👍 Yes
What You Feed: Frozen food and nori

The most peaceful tang I’ve kept, but that may be because he’s the smallest in my tank. Hides frequently in the rockwork. A pretty fish, and great for smaller reefs because of its small size.

Reef Safe: Yes
Visibility: Hides Frequently
Temperament: Peaceful
Difficulty: Easy
Min Tank Size: 70 Gallons
Overall Rating:
Would Buy Again: 👍 Yes
What You Feed: Mysis & pellets 2 times a day, nori 24/7
Reef Safe: Yes
Visibility: Always Visible
Temperament: Semi-aggressive
Difficulty: Medium
Min Tank Size: 55 Gallons
Overall Rating:
Would Buy Again: 👍 Yes
What You Feed: PE Mysis, Nori

This to me is the perfect beginner tang as in my experience they are one of the most hardy and can be homed in an aquarium as small as 55 gallons. It is a Bristletooth tang meaning it’s an incredible algae eater. Worth the money on these guys.

Reef Safe: Yes
Visibility: Always Visible
Temperament: Peaceful
Difficulty: Easy
Min Tank Size: 55 Gallons
Overall Rating:
Would Buy Again: 👍 Yes
What You Feed: Mysis and seaweed

Great addition to any reef tank. When introduced it took control of algea and was doing an amazing job. Very outgoing and swims with other fish. The tommini tang is a great addition to anyone looking to control algea and have a some what peaceful fish. They can be aggressive once established but won’t be very aggressive.

Reef Safe: Yes
Visibility: Always Visible
Temperament: Semi-aggressive
Difficulty: Medium
Min Tank Size: 55 Gallons
Overall Rating:
Would Buy Again: 👍 Yes
What You Feed: LRS premium seaweed, PE mysis, ON formula 2 flakes

Bought it to control film algae, but it’s practically useless. Good for hair algae, though. Also keeps my damsel in line and is an active swimmer.

Reef Safe: Yes
Visibility: Always Visible
Temperament: Semi-aggressive
Difficulty: Easy
Min Tank Size: 55 Gallons

For Sale

Write a Review

Tomini Tang

Ctenochaetus tominiensis

Rating is required
Please select whether you would buy again
Review is required

Suggest an Edit

Download the ReefBay App
[email protected]
|
©ReefBay 2026

Join The Community

Create an account to contribute to the community

Or continue with
Sign in with Apple
Or continue with
Sign in with Apple

Prefer our mobile app?

QR Code

Scan to download the app

Download ReefBay

Scan the QR code with your phone to download the app

Download ReefBay QR Code

Available on iOS and Android