|The structure of the frame consists of 1" square
steel tubing with our patented easy to use
connectors. You can see to the left the
construction is strong and able to handle the
weight of the growing beds. The growing beds
are made of 2 heavy duty plastic 4' x 8' and 2" thick
styrofoam sheets. 1" diameter net pots hold plant
roots secure in the water.
A tin enclosure beneath the growing beds house
the 2 air compressors and 2 space heaters.
Enclosing this area traps the heat from the space
heater. Since the growing beds are directly above,
the heat is transferred to the water and helps keep
the temperature more stable and manageable.
Optimal water temperature for Tilapia is between
75 and 80 degrees Fahrenheit. With applications
using other types of fish, water temperatures will
Air temperature is dependent on the type of plant
you are growing, but can typically be more lenient
than the water temperature. We have built a
mini-greenhouse around our system, which is
inside a larger greenhouse. This gives us easier
control of the heat needed during the winter.
Shading the fish habitat is important to keep your
algae growth minimal. Pay close attention that you
do not shade your growing area, sun is important
to your plants. We have sectioned our fish habitat
into four groups, to be harvested alternately every
six weeks. With tilapia thats a potential of 30 fish
every six weeks. There are 10 total air stones
throughout the system to oxygenate the water. 4
in each growing bed and 2 in the fish habitat, with
the fish habitat air stones being on separate
compressors in case of accidental shutdown. The
solids are cleaned from the water with the use of 3
long neck clarifiers. Each contain a baffle that
allows the solids to settle to the bottom. Once a
day, two gallons of "sludge" are emptied from
these clarifiers. Sludge is a very nutrient rich
substance that is great for the garden or lawn.
Thin the sludge evenly with water and spread
throughout your growing area.
The water from the clarifiers is de-gassed and lifted
into the growing beds with an air stone. Here the
plant roots soak up all available nutrients and the
water is sent through the return pipe beneath the
beds. The return pipe empties directly into the fish
habitat. To plant in the net pots we use a cheese
cloth liner and coco fiber and perlite mixture as a
filler. To increase production we recommend you
plant your seeds in a starter tray so they are ready
to transplant when you harvest from the growing
beds. We wish you the best of luck and don't
hesitate to call us with questions. Happy growing!