Shoaling, schooling, or co-existing

Many species of fish live in groups, but are they shoaling, schooling, or just living together, and in our tanks do they need to be in groups?

Head over to tropicalfishkeeping.co.uk to see what is going on now.

Sailed twice around the world, started my acedemic career as an archaeologist and somehow ended up lecturing on science and researching fish.