Celestial pearl danio

Danio margaritatus

Pale pearl spots cover a blue-grey body; adult males have conspicuous red-and-black fin bands.

Adult length: Up to 2.1 cm (standard length, without the tail fin)
Water temperature: 20–26 °C
pH: 6.5–7.5
Hardness: 5–15 dGH

Use planting to break sight lines while leaving feeding gaps. Males spar, and groups do not imply continuous tight schooling. Published temperature recommendations differ.

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Appearance and identification

Pale pearl spots cover a blue-grey body; adult males have conspicuous red-and-black fin bands. Danio erythromicron has flank bars and a dark tail-base mark; this species is predominantly spotted. Galaxy rasbora and Celestichthys margaritatus refer to this same entry.

Same-species behaviour

Seriously Fish favours 20 or more to distribute male aggression. This does not establish that a 45 × 30 cm base can house that group.

Space requirements

Seriously Fish suggests a 45 × 30 cm base; capacity for a specific adult group is unverified.

Diet and feeding

Offer tiny sinking or suspended foods with small live or frozen foods; surface-only feeding can miss these fish.

Compatibility limits

Small size and peaceful behaviour do not guarantee compatibility; assess predation, feeding competition, space and water separately.

Aquarium environment

Fine planting and sight breaks help; do not automatically apply a chili rasbora blackwater regime. Shrimplet risk is not quantified.

Sources