Celestial Pearl Danio — Fish Profile
Danio margaritatus
Quick Specs
| Adult Size: | 1.0" |
| Temperament: | peaceful |
| Care Level: | intermediate |
| Min Tank Size: | 10 gallons |
| Temperature: | 73-79°F |
| pH Range: | 6.5-7.5 |
| Diet: | omnivore |
| Origin: | Myanmar (Lake Inle) |
| Lifespan: | 3-5 years |
Overview
Celestial Pearl Danios, also known as Galaxy Rasboras, are tiny jeweled fish with deep blue bodies covered in pearl-like white spots and vivid red-orange fins. Despite their small size, they are striking in planted nano tanks. Males display more intense coloration.
Care Guide for Celestial Pearl Danio
Tank Setup
Celestial Pearl Danio requires a minimum tank size of 10 gallons. Maintain water temperature between 73°F and 79°F, with a pH range of 6.5 to 7.5. A properly sized tank with adequate filtration and regular water changes is essential for long-term health. When housing Celestial Pearl Danio with other species, always choose a tank size that accommodates the most demanding fish in the community.
Feeding
Celestial Pearl Danio is a omnivore feeder. Provide a varied diet appropriate for omnivore species to ensure optimal health and coloration. Feed small portions 2–3 times daily, and remove uneaten food after a few minutes to maintain water quality.
Temperament & Compatibility
This species is classified as peaceful. Celestial Pearl Danio reaches an adult size of 1.0 inches and has a care level of intermediate. Always research compatibility before adding new fish to an established aquarium. Individual temperament can vary, so monitor new introductions closely for the first 48 hours.
Origin & Lifespan
Celestial Pearl Danio originates from Myanmar (Lake Inle) and has an expected lifespan of 3-5 years when kept in proper water conditions with appropriate tank mates and diet.
Compatible Tank Mates
🟢 Good Tank Mates
🟡 Caution Tank Mates
🔴 Risky Tank Mates
Compatibility Results for Celestial Pearl Danio
All 69 compatibility checks involving Celestial Pearl Danio:
Recommended for Celestial Pearl Danio
Hikari Micro Pellets — $7.99Micro pellet food for tiny danios and rasboras
Expert Care Tips for Celestial Pearl Danio
- Nano tank suitable: Celestial Pearl Danio can thrive in smaller tanks (10+ gal), but skip the bowl — even small fish need filtration and a heater.
- Tropical range: Keep Celestial Pearl Danio at 73–79°F. A 50W heater per 10 gallons is a safe rule of thumb for stable temperature.
- Narrow pH tolerance: Celestial Pearl Danio only tolerates pH 6.5–7.5. Test your tap water before buying — adjusting pH is harder than choosing the right fish for your water.
- Peaceful community fish: Celestial Pearl Danio works well in community tanks. Still, avoid housing with fish large enough to eat them — a 1.0" fish is vulnerable to anything with a mouth bigger than 2×.
- Acclimation: Always drip-acclimate Celestial Pearl Danio over 30–45 minutes. Match temperature and pH gradually to prevent osmotic shock.