Celestial Pearl Danio Care Guide
Celestichthys margaritatus · Moderate care · 10 gallon minimum
The 'galaxy rasbora' — pearl-spotted with red fins; a stunning nano centerpiece for calm planted tanks.
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How big does a celestial pearl danio get?
A celestial pearl danio (Celestichthys margaritatus) reaches about 1.0 inches as an adult. Plan tank size and tank mates around the adult size, not the small fish you buy at the store.
Tank size & setup
Give a celestial pearl danio a minimum of 10 gallons, with water at 73–79°F and a pH of 6.5–7.5. Keep them in groups of at least 6 — they are shoaling fish and become stressed and washed-out alone. As a moderate-care, omnivore species, a stable, cycled tank with the right diet keeps them healthiest.
Good tank mates
Pair a celestial pearl danio with peaceful species that share its temperature and pH range. Compatible options include:
- Neon Tetra — 1.5", 10g min
- Guppy — 2.0", 10g min
- Molly — 4.0", 20g min
- Platy — 2.5", 10g min
- Zebra Danio — 2.0", 10g min
About the celestial pearl danio
Danio margaritatus, the celestial pearl danio, often referred to in the aquarium trade as galaxy rasbora or Microrasbora sp. 'Galaxy', is a small freshwater ray-finned fish belonging to the family Danionidae. This fish is from Myanmar and Northern Thailand. It has so far been found only in a very small area near Hopong east of Inle Lake, at an elevation of over 1,000 m (3,400 ft). Its habitat is part of the Salween basin, namely the Nam Lang and Nam Pawn Rivers. Discovered in 2006, the species quickly appeared in the aquarium trade, where its small size and bright colours made it an instant hit.
Recommended gear for celestial pearl danios
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