Blue Velvet Damsel

Neoglyphidodon oxyodon

(1)

Share Your Photos

Add your photos to help others

Suggested Tank

30+ gallons

Max Size

6 inches

Difficulty

Easy

Temperament

Aggressive

Description

Juveniles are jet-black with electric neon-blue streaks on the head and back plus a bold white-to-yellow vertical bar, while adults fade to a mostly dark gray-black fish with faint markings. It is a hardy, aggressive damsel that will bully tankmates and defend a territory, so it is best added last to a fish-only or robust mixed community with plenty of rockwork for hiding and clear swimming space. Keep one per tank in at least 30 gallons; it does not harm corals but is difficult to remove once established.

Reef Safe

Yes

Environment

They require a tank with plenty of hiding spots and swimming space. The tank should also have stable water conditions with a moderate to high water flow.

Behavior

Blue Velvet Damsels are active swimmers and are often seen darting around the aquarium. They can be territorial, especially towards other damsels and smaller fish. They are also known to be quite hardy and can tolerate a range of conditions in the aquarium.

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

Owner Reviews

Overall Rating:
Would Buy Again: 👍 Yes
What You Feed: PE Mysis, pellets

Great dither fish for those looking to establish some confidence in otherwise shy fish. Always out and visible. Semi-aggressive towards its own species but hasn’t bothered anything else in the tank.

Reef Safe: Yes
Visibility: Always Visible
Temperament: Semi-aggressive
Difficulty: Easy
Min Tank Size: 50 Gallons

Write a Review

Blue Velvet Damsel

Neoglyphidodon oxyodon

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

Suggest an Edit

©ReefBay 2026
|
Developed by Billy Voitik

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