Celestial Pearl Danio (Galaxy Rasbora) – Expert Only
Discovered in 2006, the Celestial Pearl Danio is an exciting addition to the aquarium hobby. Known for its rich coloration and striking markings, this fish is highly desirable among aquarists.
Adorned with iridescent, jewel-like spots, the deep metallic blue body creates a breathtaking, starlit night effect. Contrasting orange bands on its fins add a vibrant and unexpected splash of color.
Though small in size, the Celestial Pearl Danio is a majestic and visually stunning fish. It thrives in peaceful community tanks or well-planted aquariums of at least 10 gallons.
| Key Features | Details |
|---|---|
| Size | 2.5 to 3.5 inches |
| Coloration | Deep metallic blue body with iridescent spots and orange fin bands |
| Temperament | Peaceful, social |
| Water Conditions | Temperature: 72–78°F, pH: 6.0–7.5, soft to moderately hard water |
| Compatibility | Best with non-aggressive, similarly sized fish in a well-planted tank |
FAQ
What is the ideal tank size for Celestial Pearl Danio?
The Celestial Pearl Danio does best in a well-planted aquarium of at least 10 gallons.
Are Celestial Pearl Danio suitable for beginner aquarists?
No, this species is classified as expert only due to specific water parameter and tank setup requirements.
How do Celestial Pearl Danio behave in a community tank?
They are peaceful and social, making them suitable for a community tank with similarly sized, non-aggressive fish.

Charles Wright –
The Celestial Pearl Danio is absolutely stunning. The iridescent blue body and orange fin bands create a mesmerizing effect in the tank. I’ve kept them in a 10-gallon planted tank with tetras and Corydoras. They’re calm and active, adding a lot of visual interest without causing any stress to other fish.
Blake Rampling –
After researching for a while, I finally found the right fish. The coloration is vibrant and changes slightly under different lighting. They’re easy to care for once the water parameters are stable. A must-have for any serious freshwater aquarium.
Steven Alsop –
Beautiful fish with a unique appearance. I noticed they prefer areas with some cover and soft plants. They don’t jump or chase others, which makes them ideal for a peaceful setup. A little more maintenance than average, but worth it.