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Celestial pearl danio (Danio margaritatus)
AI illustration, not an ID reference

Celestial pearl danio

Danio margaritatus

FishFreshwater

Care level
Moderate
Temperament
Peaceful
Recommended tank
40 L
Maximum size
2.5 cm
Temperature
20–26 °C
pH
6.5–7.5
Group size
≥ 8
Diet
Omnivore

Care at a glance

The celestial pearl danio was only discovered in 2006 and became so popular within a year that the wild sites in Myanmar were all but emptied. Nearly everything in the trade is now captive-bred, which is just as well. It is a tiny fish with pearl-white spots on a deep blue body and bright red fins.

Despite its looks it is not a true schooling fish but a group animal mostly occupied with pecking order: males spread their fins and chase each other around without real harm. Give them a densely planted tank with plenty of sight breaks for that. They come from cool ponds, so a heater is often unnecessary — room temperature does fine.

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Values are mainstream hobbyist guidance, not gospel — always watch what your own animals need.