Giant Danio: The Danio That Outgrew the Name

In this guide

Overview

The giant danio, Devario aequipinnatus, lives up to its name, reaching ten to fifteen centimetres, considerably larger than the zebra or pearl danio and easily the biggest fish in this danio group. It is native to fast-flowing streams in the Western Ghats of India and parts of Sri Lanka, giving it genuine home-ground status for Indian aquarists.

Its body carries bold blue and gold-yellow horizontal stripes, and its size and speed make it a striking, active centrepiece fish rather than a background shoaler.

Tank and water requirements

Given its adult size and very active swimming style, a group of five or more giant danios needs a tank of at least a hundred and fifty litres, with plenty of length for the fast, continuous swimming this species is known for.

It is hardy and adaptable to a range of water conditions, including typical Indian tap water, but genuinely needs the swimming space, and is a poor fit for anything smaller than a fairly large community tank.

Diet and behaviour

An omnivorous diet of good-quality flakes or pellets, supplemented with occasional live or frozen food, suits its size and activity level. It is a fast, enthusiastic feeder that rarely struggles to find food even alongside more assertive tankmates.

Giant danios are peaceful but boisterous, and while they generally do not nip fins, their sheer speed and energy can stress slower, more timid fish sharing the tank, so mid-sized, similarly active tankmates work best.

Buying tips

• Priced around thirty to seventy rupees per fish in most Indian shops that stock larger danios
• Best suited to a spacious community tank rather than a small or nano setup
• A genuinely Indian native species, worth mentioning to visitors as a fish that comes from the streams of the Western Ghats rather than from abroad

Article content © S Vejay Anand. All rights reserved.