Zebra Danio Identification Guide
Identify a zebra danio by its bold horizontal blue stripes running the length of a slender, torpedo-shaped body.
Read the full Zebra Danio encyclopedia entry →Key identification features
- Small, slender, torpedo-shaped body built for fast, constant swimming
- Bold horizontal blue and silver-gold stripes running from behind the gill cover all the way onto the tail fin
- Forked tail fin that continues the striped pattern
- Small pair of barbels at the corners of the mouth
- Compressed body shape when viewed from above, more cylindrical than deep-bodied
- Small size, typically 4-5 cm
Common look-alikes
- Pearl danio: shows a pearly, iridescent sheen with scattered spots rather than continuous stripes
- Leopard danio: a spotted color form closely related to the zebra danio, covered in dark spots instead of stripes
- Giant danio: noticeably larger and deeper-bodied, with stripes that are less crisp and more broken
Where you'll see one
Zebra danios are native to slow-flowing streams, rice paddies, and floodplain pools across South Asia, including India and Bangladesh, where they form active shoals near the surface in open, well-lit water; they are also one of the most widely kept schooling aquarium fish.
Frequently asked questions
How do I tell a zebra danio from a pearl danio?
A zebra danio shows crisp, continuous horizontal stripes onto the tail, while a pearl danio has a shimmering, pearly body with scattered spots rather than solid stripes.
How do I tell a zebra danio from a leopard danio?
A leopard danio is a spotted color form of the same species, showing dark spots instead of the zebra danio's long horizontal stripes.