The Think Fish Encyclopedia is a comprehensive guide to terms and subjects relating to fishkeeping and aquatics. In this area you will be able to look up specific terms such as 'ammonia', 'protein skimmer', or 'pathogen' and read a detailed yet jargon friendly explanation.

To use the encyclopedia, simply search for a term using the keyword search on the left. Alternatively, you can see all entries under our a-z listing by clicking on a letter in the a-z search. The 'recently viewed' area below allows you to quickly head back to a recently viewed entry.