

The Celestial Pearl Danio, also known as the Galaxy Rasbora, is a captivating nano fish renowned for its vibrant coloration and peaceful demeanor. Originating from the small, vegetated ponds of Myanmar, this species has become a favorite among aquarists for its shimmering blue body adorned with pearly spots and striking red-orange fins. Ideal for planted aquariums, these fish add a splash of cosmic beauty to any freshwater setup.
Scientific Name: Danio margaritatus
Common Names: Celestial Pearl Danio, Galaxy Rasbora
Size: Up to 2.5 cm (1 inch)
Lifespan: 3–5 years with proper care
Temperament: Peaceful and social; thrives in groups
Diet: Omnivorous – consumes micro-pellets, crushed flakes, live or frozen daphnia, brine shrimp, and cyclops
Water Parameters:
Temperature: 22–26°C (72–79°F)
pH Level: 6.5–7.5
Hardness: 1–5 dGH
Minimum Tank Size: 20 liters (5 gallons) for a small group.
Stunning Appearance: Their galaxy-like pattern and vibrant fins make them a visual delight.
Peaceful Nature: Ideal for community tanks with other non-aggressive species.
Active Swimmers: They exhibit lively behavior, especially when kept in groups.
Easy to Care For: Hardy and adaptable, suitable for both beginners and experienced aquarists.
Substrate: Fine sand or smooth gravel to mimic natural habitats.
Decor: Incorporate live plants, driftwood, and floating vegetation to provide shelter and breeding grounds.
Filtration: Gentle filtration to maintain water quality without creating strong currents.
Lighting: Moderate lighting to enhance their coloration and support plant growth.
Tank Cover: Secure lid recommended, as they may jump if startled.
Celestial Pearl Danios are compatible with other peaceful species, such as:
Small Tetras
Corydoras Catfish
Avoid housing with aggressive or significantly larger fish that may cause stress or pose a threat.
Staple Diet: High-quality micro-pellets or finely crushed flake food.
Supplementary Foods: Live or frozen daphnia, brine shrimp, and cyclops.
Feeding Frequency: Twice daily; offer only as much as they can consume in 2–3 minutes.
Are Celestial Pearl Danios suitable for beginners?
Yes, their hardy nature and peaceful temperament make them ideal for novice aquarists.
Can they be kept in outdoor ponds?
They prefer stable, warm temperatures and are best kept in indoor aquariums.
Do they require a heater?
Yes, maintaining a stable temperature between 22–26°C (72–79°F) is ideal.
Are they safe for planted tanks?
Absolutely; they are plant-friendly and may even benefit from the cover provided by aquatic vegetation.
Thanks for subscribing!
This email has been registered!