The reason Recirculating Aquaculture System profitable is, enabling big amount of fish producing with rather in a short time of period. We might add that Recirculating Aquaculture System is continuous with the same - or even higher production capacity,where the market need is satisfied.
With RAS, all necessary values for fish health can be controlled. In this way producing of fish is stable and predictable. The system is isolated from environmental and climate-related factors.
Recirculating aquaculture system can be established everywhere. It doesn't need water source like sea, lake or river. It can use ground water.