These floating mini-gardens were created by French designer Benjamin Graindorge as a natural filter system for aquariums. The idea is inspired by plants that purify water. The whole structure is designed as a natural filtration system, reducing the need for water changes while saving energy.
Benjamin Graindorge’s floating mini-garden as a natural filtration system
The floating mini-garden was created by Benjamin Graindorge in collaboration with Duende Studio. The garden combines several water-purifying plant species with a sand bed. The filter garden works on the principles of hydroponics and recycling, helping keep aquarium maintenance to a minimum. All you need to do is occasionally clean the aquarium glass with a sponge and feed the fish regularly.
Floating mini-garden – filtration technology
The mini-garden by Benjamin Graindorge is based on two simple principles that keep the cleaning process running smoothly. The first technique uses a sand bed: a 5 cm layer of sand filters the aquarium water. Small particles in the water create a useful environment for friendly bacteria, which convert nitrogen into nitrates. The second technique is based on an aquaponic system. Nitrate-rich water passes down through the sand to the plant roots, which absorb the nitrates as nutrients. The remaining water is cleaner and flows back into the aquarium.
Pink aquarium with floating garden filters
Floating garden filter system on a blue aquarium
Plants and sand in the mini-garden
Components of the filtration system
Natural filtration system for the home
Different design for a large aquarium
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