Here is our 'high tech' state-of-the-art aquaponics greenhouse, which we have nicknamed the 'Hanging Gardens of El Batan.' (The area we live in is called El Batan.)
Aquaponics has been an exciting development for us. We believe that as vegetarians, vegans and pescatarians we can come close to 100% sustainability using this system. We are solar pumping the nutrient-laden water from our new lined 105'x43' fishpond, which is filled with pond water from our natural flow lower fish ponds, up to this aquaponics growing area. The water will cycle through the trays, and then clean aerated water will be gravity-fed back to the fish - a win/win situation. In the photo above, a few of the blue trays can be seen in the last row.
We now have the capacity for almost a 100 of the blue trays. With 8 butter lettuces per tray, that's 800 lettuces growing. Our intention is to grow many other greens in the trays, but local restaurants are eager to buy good salad greens at this time, and we intend to consume quite a few ourselves.
The protected south-facing bank of growing trays within the greenhouse situation allows the plants to grow much faster than normal. Each tray has an adjustable water level, so plants can have nutrients with roots in water and partially exposed to oxygen. Each tray also has a small venturi on the outlet that feeds to the tray below. From the bottom tray, the water gravity feeds back to the main fishpond.
The large body of water in the fishpond also provides cooler air during the warmer months of April/May/June and is a delightful addition to the view from the patios. Lots of landscaping to do and color to add to both the surrounding area and the pond, which will have water lilies to provide shade for the fish.
With the solar pump and panel paid for, the whole system runs itself at little cost to us. People who have put this system to work on their land have found they can grow ten times the produce of a normal garden area with almost no labor except for planting - at waist height - no bending, stooping, crawling on hands and knees, weeding, etc.
And nice to know that if we need them for our diet, we will have clean fish available.