Success and enjoyment with and from the bio-filter hydroponics in the aquarium, with the impressive three-dimensional aquariums, is really not rocket science. Let yourself be inspired by the idea that an aquarium with a Bio-Filter hydroponics system can also be a three-dimensional water garden. With great pleasure and growing enthusiasm. Aha; that's how a bio-filter hydroponics aquarium works. The impressive three-dimensional aquarium is a very clear work, + which on the one hand explains the details, + which also shows the interrelationships; + this also includes pictures of your own aquarium projects, + which trigger the "aha effect" in many places. The course of the book is clearly structured and optimally documented with many examples. Basic impulses, nitrate reduction against the algae plague, project planning of the three-dimensional aquarium with the active bio-filter hydroponics, setup with the active bio-filter hydroponics, retrofitting an existing aquarium to three-dimensional aquaristics with a passive bio-filter hydroponics, which plants and where from? Pick up for new starters. The book is written and illustrated in a way that is understandable for the many aquarists who are new or relatively new to aquariums with a bio-filter and hydroponics in an aquarium project. Giving ideas for professionals. The course of the book with words and pictures is never trivial for aquarists who have already dealt more intensively with filter technology for aquariums. The shapes of the three-dimensional aquariums with the hydroponic bio-filter can be created individually and the project should always be adapted to your living space, not the other way around. The course of the book shows several of my projects, each with a different shape.