Leopard Danio: A Spotted Twist on a Familiar Fish

In this guide

Overview

The leopard danio carries a striking pattern of dark spots over a golden body, quite different from the horizontal stripes of its close relative the zebra danio. For years it was thought to be a separate species, but genetic studies have shown it is in fact a naturally occurring spotted colour form of Danio rerio, the same species as the common zebra danio, arising from a single gene mutation that changes stripes into spots.

This means it shares the zebra danio's native range across streams and rice paddies of eastern India, Nepal and Bangladesh, and behaves identically in the aquarium despite looking quite different.

Tank and water requirements

A group of six or more does well in a tank of sixty litres or more, with the same active, fast-swimming nature as the standard zebra danio. It shares the same hardiness and easily tolerates typical Indian tap water and a broad temperature range.

A secure lid matters here too, since leopard danios jump just as readily as their striped counterparts.

Diet and behaviour

An easy omnivorous diet of flakes, micro pellets and occasional live or frozen food suits it well. It is just as active and hardy as the zebra danio, making it equally suitable for a beginner's tank, including one still cycling.

It can be kept alongside standard zebra danios in the same shoal, since the two interbreed freely and behave identically, though most keepers prefer to keep the two patterns as separate, visually distinct groups.

Buying tips

• Priced similarly to the standard zebra danio, generally fifteen to thirty rupees per fish
• A good way to add pattern variety to a danio shoal without adding any extra care difficulty
• Worth knowing it is a colour form rather than a distinct species if a shop or fellow hobbyist claims otherwise

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