Aquaponics income estimator. simple, easy and accurate! "we are just starting the design of our small aquaponics farm and we bought this estimator to help us with the proforma. we wanted to know what could we expect before we invested our money and time. the decision to invest in a business has to be done through a financial model and this. Commercial aquaponics installations. on a larger scale, commercial installations (3,000+ sq. ft / 279 m 2) have an roi’s in the one-to-three-year range depending on these factors:. the successful operation of a commercial sized farm is dependent on the skill of managers and operators of the farm..