Danio albolineatus
The pearl danio is a widespread South Asian danionid with a pink–pearl lateral stripe and reflective body. It is active, hardy, and tolerates slightly cooler water than many tropicals—often kept in subtropical or unheated setups within limits. Shoals in the upper and middle water; keep six or more for confidence. Peaceful toward most tankmates of similar size. Egg scatterer with no brood care; breeding similar to other Danio species with fine plants or spawning mops.
Flake or small granules; frozen daphnia or cyclops; varied diet enhances iridescence.
Frequency: 1–2× daily
Pearl sheen shows best with clean water and varied foods.
Native Region: Southeast Asia (Myanmar, Thailand, Cambodia, Laos, Vietnam, wide range)
Slow streams, ditches, and rice paddies with vegetation.
Planted tank with swimming lanes; can suit cooler community lists than strict tropicals.
Activity Level: High
Schooling Size: 6+ recommended
Fast, visible swimmers; use with other active fish rather than shy bottom dwellers only.
Difficulty: Moderate
Type: Egg scatterer
Sexual Dimorphism: Females fuller-bodied; males may be slightly slimmer and more intense in colour.
Early-morning spawning; eggs adhesive; separate adults after eggs are laid.
Substrate: Either
Plant Safe: Yes
Floating plants for shade; fine substrate for spawning interest.
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