Galaxy Rasbora

The Galaxy Rasbora, also known as the Celestial Pearl Danio, is a stunning nano freshwater fish known for its deep blue body covered in pearly white “star-like” spots and bright red-orange fins. Small, peaceful, and incredibly colorful, this species is perfect for planted nano aquariums.

Temperament: Peaceful (males may lightly spar)
Difficulty Level: Easy to Moderate
Adult Size: 1 inch
Lifespan: 3–5 years
Tank Size: 10 gallons minimum
Temperature: 72–78°F
pH: 6.5–7.5
Water Hardness: Soft to moderately hard

✔ Keep in groups of 6–10+
✔ Heavily planted tanks preferred
✔ Provide hiding spots and dense cover
✔ Gentle filtration
✔ Stable, well-cycled water is important

They feel safest in planted environments and will show their best coloration in calm, established tanks.

 Food

Galaxy Rasboras have small mouths and prefer fine foods:

• High-quality micro pellets

• Crushed flakes

• Baby brine shrimp

• Microworms

• Daphnia

Feed small portions 1–2 times daily.

Fun Facts

• Their white spots resemble a starry night sky — hence the name “Galaxy.”
• Males develop brighter red fins and deeper blue coloration.
• They were only discovered in 2006!
• Males will gently display and spar to show off their colors.