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System a
That could be built most anywhereThese small systems could be built either indoors or out. Catfish, carp, and tilapia system are better indoors. A garage or small greenhouse would be good. And would also provide a good site for mounting solar panels if needed.
The systems we will describe require a floor space of 192 sq. Ft. And operates with a continuous pumping at a rate of 18.5 gal/minute (or about 1110 gal./hr ) The filter is of the submerged gravel type. The sedimentation basin is suitable for keeping all species, and we will describe how to adapt it to the needs of each later.
The fish tank for this system is 4 feet wide, 4
feet deep and 8 feet long filled 12 inches from the top it holds
720 gal.
The sedimentation tanks for this system is two plastic drums. The
drums are filled with bird or fish netting to slow the flow.
A 2 inch siphon brings water from the fish tank to the first
drum, another 2 inch siphon brings water to the second drum has
two Rio 2500 pumps.
The Rio 2500 pumps 782 gallon per hour one pump returns the water
to the fish tank through a fountainhead. The other pump takes to
the Grow beds/filters.
For this system since it is all on the same level you will need two containers for the grow beds/filters to drain into and two more pumps with float switches to return the water to the fish tank.
In the next system we will do away with the two containers for the grow beds/filters to drain into' the two ,pumps, and the float switches.