Aquarium science is a hobby that unites different people in one - the desire to make the aquarium better, give life to living creatures and preserve it. The author, who has four aquariums at home, shares his practical experience with you, because you are also not indifferent to aquarium science. How to make caring for the aquarium easy, optimal, how to automate the life processes of the aquarium at home and in the office - this is described in the book. Particular attention is paid to the advice on the maintenance of aquariums, and its "know-how" - practical recommendations for the maintenance of aquariums in the village and country house. Perhaps everyone can repeat the recommendations given in the book - they are so simple. In combination with the above with a description of the life of fish, macro- and microorganisms in aquariums, this book has no analogues yet.