This article is not for medium and expert level aquarists . But may be beneficial for entry level hobbyists. There are some basics to start a new aquarium. And a lot of people are ignorant towards and get into trouble or find difficulty after they start off.This is a basic requirement of fish keeping. Irrespective of what ever level of expertise you have, fish net is a must. Fish is very sensitive in nature. Handling without care will not only physically harm them, but also physiologically. A scared fish can move around very fast and can hit the equipments and wall of the tank and harm themselves. More over a stressed fish will have shorter live. Fish nets are available in different sizes and hence choose the right size of the net based on the size of the fish and the tank. Fish net will come handy while cleaning the tank or changing tanks or during transport.