Note
In the past decade, small-scale recirculating aquaculture systems (RAS) have received increasing attention because of their potential to produce high densities of fish in systems that occupy a relatively small area. In this study, a small-scale RAS was designed and developed to optimize use of water, energy and technology in a demonstration system for tilapia production. The goal was to use a two-phase RAS to produce multiple crops of tilapia without the use of supplemental oxygen.