Beau Gregory Damselfish
The Beau Gregory Damselfish, or simply the Gregory Damsel, is reef safe but territorial. This damsel needs some rock crevices to claim its own. These colorful fish will only get to about 2 inches in size. It’s an odd name – but beau just means pretty, and gregory is a common name used by taxonomists for damselfish. Bet you were hoping for a story.
- Scientific name: Chrysiptera sp.
- Diet: variety of meaty foods, herbivore preparations, and flaked foods
- Max Size: 2 inches
- Required tank size: 30+ gallons
- Shipping Size: Approx. 1 1/2 inches
| Feature | Detail |
|---|---|
| Scientific Name | Chrysiptera sp. |
| Max Size | 2 inches |
| Tank Size Required | 30+ gallons |
| Diet | Meaty foods, herbivore preparations, flaked foods |
| Shipping Size | Approx. 1 1/2 inches |
FAQ
Is the Beau Gregory Damselfish suitable for a reef tank?
Yes, the Beau Gregory Damselfish is considered reef safe, but it is territorial and requires adequate rock structures for it to establish its territory.
How big does this fish grow in captivity?
It typically reaches a maximum size of 2 inches.
What kind of diet should I provide?
A varied diet including meaty foods, herbivore preparations, and flaked foods is recommended.

Victoria Wallace –
The fish arrived healthy and was active right away. It’s colorful and stays in its corner of the tank without bothering other fish. I appreciate the clear info on diet and tank size. Easy to care for once the setup is complete.
Sarah Ball –
It’s a nice addition to my 35-gallon reef tank. I made sure to add plenty of rock crevices, and it’s settled in well. Feeds well on a mix of meaty and flaked foods. A bit territorial, but manageable with proper setup.
Stewart Mills –
The fish looks vibrant and stays calm in its space. I didn’t expect it to be so active in the corner, but it’s not aggressive. Great for a small reef tank with proper hiding spots.