Emerald dwarf danio

Danio erythromicron

Blue-green bars and a tail-base spot

Blue-green vertical bars cross a pale body, with a conspicuous black spot at the tail base.

Adult length: Up to 2 cm (standard length, without the tail fin)
Water temperature: 21–25 °C
pH: 7–8
Hardness: 12–20 dGH

Natural habitat: Inhabits the shallow, clear waters of Lake Inlé, with fertile loamy beds and extensive marginal vegetation and floating plant mats.

Prefers neutral to mildly alkaline, harder water rather than a blackwater setup. It lives at 20–24°C in Lake Inle. Break sight lines with plants and watch male aggression and feeding competition.

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Appearance and identification

Celestial pearl danios show pearl spots and red-black fin bands; this species has bars and a tail-base spot. Keep breeding groups separate because of possible hybridisation.

Same-species behaviour

Keep 20 or more to spread male aggression.

Space requirements

Use a 60 × 30 cm base.

Diet and feeding

Provide tiny sinking or suspended foods and small live or frozen foods, not surface-only feeding.

Compatibility limits

Check predation, feeding competition, space and water needs before choosing tankmates.

Aquarium environment

Keep both planted cover and feeding gaps. A social group is not continuously tight schooling.

Sources