What size tank does a Celestial Pearl Danio need?

Celestial Pearl Danio needs a minimum of 10 gallons, with 15 gallons recommended. They are middle swimmers. Keep in groups of 6+.

Is Celestial Pearl Danio good for beginners?

Celestial Pearl Danio is rated "intermediate" difficulty (2/5). Great for beginners.

What fish are compatible with Celestial Pearl Danio?

Celestial Pearl Danio is peaceful. Compatible tank mates include other peaceful fish with similar water parameters (pH 6.5-7.5, temp 72-79°F).

Celestial Pearl Danio

Danio margaritatus

Family: Cyprinidae • Origin: Southeast Asia

The Celestial Pearl Danio (Galaxy Rasbora) is one of the most stunning nano fish. Deep blue body covered in pearl-like spots with orange fins.

Min Tank

10 gal

Max Size

Temperature

72-79°F

6.5-7.5

Lifespan

4 years

School Size

Swim Level

middle

Hardness

2-12 dGH

peacefulintermediateomnivoreschooling

Is Celestial Pearl Danio Right for Your Tank?

Celestial Pearl Danio is an excellent choice for beginners — rated "intermediate" difficulty (2/5). They're hardy, forgiving of minor water parameter fluctuations, and generally easy to feed. At just 10 gallons minimum, they work well in nano tanks and smaller setups.

With a peaceful temperament, Celestial Pearl Danio makes a great community fish. They coexist well with other non-aggressive species of similar size. This is a schooling species — keep at least 6 together, or they may become stressed and display abnormal behavior. Expected lifespan: 4 years with proper care.

Common Mistakes with Celestial Pearl Danio

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Keeping fewer than 6 together

Celestial Pearl Danio is a schooling species — they need a group of at least 6 to feel secure. Lone or paired individuals become stressed, hide constantly, and may develop health issues or aggression.

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Putting them in a tank under 10 gallons

While 10 gallons is the minimum, nano tanks require more frequent water changes and leave less room for error. A slightly larger tank (15 gal) is much more forgiving.