Pearl Danio: A Softer Shimmer Than Its Zebra Cousin

In this guide

Overview

The pearl danio, Danio albolineatus, shares the zebra danio's energetic nature but trades the bold stripes for an iridescent, pearly sheen across the body that shifts between pink, blue and gold depending on the light. It comes from Myanmar, Thailand and Sumatra and grows to around six centimetres, slightly larger than the zebra danio.

It is somewhat less commonly kept than the zebra danio in India but offers a subtler, equally hardy alternative for a keeper wanting variety in a danio shoal.

Tank and water requirements

A group of six or more does well in a tank of sixty litres or more, with good swimming length given how active this fish is. Pearl danios are hardy and undemanding about water hardness, adapting easily to typical Indian tap water.

As with the zebra danio, a secure lid is worth having, since pearl danios are capable jumpers when startled.

Diet and behaviour

An easy diet of flakes, micro pellets and occasional live or frozen food suits them well. They are peaceful, fast-moving fish that do best with similarly active tankmates rather than slow, easily stressed fish.

Their shimmering colour is best appreciated in a tank with good lighting and a dark substrate, which makes the iridescence stand out clearly.

Buying tips

• Priced around fifteen to thirty rupees per fish, similar to the zebra danio
• Less commonly stocked than zebra danios in general pet shops, so may need to be sourced from a larger aquarium specialist
• A good choice for a hardy, active shoal with a subtler look than the classic striped zebra danio

Article content © S Vejay Anand. All rights reserved.