Nano fish tanks are popular for their beauty and compact size, so learn about 10 aquarium fish that are small enough to comfortably live in them.

You have a small or medium-sized aquarium in your office or at home and wonder how to make it more lively.This is easy: I have a couple of options on my mind and while these are nano species of schooling fish that are beautiful to observe they also fit the bill perfectly.But what are the best freshwater inhabitants for a tiny 3.5 to 5-gallon tank?