The water in the fountain is pumped up to the 2-liter soda bottle planters at the top, where it trickles down through the rest of the planters and finally into the fish tank. There are 7 edible tilapia fish, 6 goldfish and 2 koi coexisting in the tank. The system is next to a sliding glass door for natural lighting and has additional grow lights, most of which are efficient LED bulbs that emit the ideal frequencies of light for plant growth - red and blue.

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