What is Gamma Tower?

Gamma Tower is a aquaponic tower constructed on a 6'x3'x1.5' metal shelf. It consists of 3 shelfs, the first holds 2 10 gallon totes which serve as grow beds, the second holds the same while the third holds 1 large 30 gallon fish tank. We placed the fishtank on the bottom shelf and pump the water to the growbeds (the middle and upper shelves).