Danio Care Guide: Fast, Hardy Fish for Beginners

Danios are small, fast-swimming schooling fish known for being some of the hardiest species in the hobby, tolerant of a wide range of temperatures and water conditions.

Why Danios Are Great for Beginners

Their hardiness makes danios a common recommendation for adding fish during the tail end of fishless cycling — see our cycling guide for details.

Tank Setup

Danios need horizontal swimming space more than depth, so a wider tank suits their energetic schooling behavior better than a tall one.

Social Needs

Keep danios in groups of six or more for their best natural schooling behavior and reduced stress.

Diet

Danios accept virtually any flake, pellet, or frozen food without fuss, making feeding straightforward.

Browse our danios selection, and see our GloFish care guide for fluorescent danio varieties.