Pearl Danio Identification Guide
Recognize the Pearl Danio by its slender iridescent body with a pearly sheen and a bold orange-gold flank stripe.
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Key identification features
- Slender, elongated, torpedo-shaped body typical of danios
- Iridescent, pearly sheen across the body that shifts pink, blue, or lavender in different light
- Bold, dark horizontal stripe along the lower flank, often edged in orange-gold
- Forked tail fin, sometimes tinted with the same orange hue as the stripe
- Small, upturned mouth suited for surface feeding
- Adult size around 2-2.5 inches (5-6 cm), larger than many common danios
Common look-alikes
- Zebra Danio has multiple bold blue stripes running the full body length rather than the Pearl Danio's single stripe over an iridescent, pearly body.
- Leopard Danio (a Zebra Danio color morph) shows spots instead of stripes, unlike the Pearl Danio's smooth pearlescent sheen.
- White Cloud Mountain Minnow is smaller and lacks the strong iridescent, pearly luster across the whole body.
Where you'll see one
Native to slow-moving streams, ditches, and floodplain pools in Myanmar (Burma), where it swims in loose surface-oriented shoals over silty or vegetated bottoms in warm, still to gently flowing water.
Frequently asked questions
How do I tell a Pearl Danio from a Zebra Danio?
Look at the stripe count and sheen: Pearl Danios have one dark stripe on an iridescent, pearly body, while Zebra Danios show several parallel blue stripes over a less lustrous body.
What gives the Pearl Danio its name?
Its body reflects light with a pearl-like, shifting iridescence across pink, lavender, and blue tones, which is the source of the common name.