AQUACULTURE IS ONE OF THE FASTEST GROWING AGRICULTURE SECTORS. HOWEVER, ITS RAPID GROWTH IS ALSO CONTRIBUTING TO THE DISCHARGE OF LARGE AMOUNTS OF NITROGEN-RICH EFFLUENT INTO SURROUNDING ECOSYSTEMS CAUSING ALGAL BLOOM AND OTHER ENVIRONMENTAL CONCERNS. AQUAPONICS, WHICH COMBINES AQUACULTURE WITH HYDROPONICS, IS AN EMERGING TECHNOLOGY FOR CAPTURING EXCESS NUTRIENTS FROM AQUACULTURE EFFLUENT AND RECYCLING THE WATER. HOWEVER, MAINTAINING HIGH DISSOLVED OXYGEN (DO) LEVEL IN AQUACULTURE AND AQUAPONICS HAS BEEN A MAJOR CHALLENGE WITH CONVENTIONAL AERATION SYSTEMS. HERE WE PROPOSE TO EMPLOY NANOBUBBLES (NB) TECHNOLOGY IN SUCH SYSTEMS TO ACHIEVE HIGH DO CONCENTRATION WHICH COULD LEAD TO BETTER WATER QUALITY, AND BETTER PERFORMANCES OF AQUACULTURE AND AQUAPONICS THAN THE CONVENTIONALLY-AERATED SYSTEMS. TO DATE, LITTLE IS KNOWN ABOUT THE EFFECTS OF NB ON PERFORMANCE OF AQUACULTURE AND AQUAPONICS. HERE WE PROPOSETO APPLY NB TECHNOLOGY IN AQUACULTURE AND AQUAPONICS TO ACHIEVE HIGH DO LEVEL FOR IMPROVED FISH AND PLANT YIELDS WITH CONCOMITANT MINIMIZATION OF NUTRIENT DISCHARGE INTO WATER BODIES, AND OVERALL IMPROVEMENT IN WATER QUALITY. A SERIES OF AQUACULTURE AND AQUAPONICS, USING TILAPIA AS A MODEL FISH AND BUTTERHEAD LETTUCE AS PLANT SPECIES, WILL BE OPERATED IN GREENHOUSE. THE PLANT AND FISH YIELDS ALONG WITH IMPORTANT WATER QUALITY PARAMETERS AND MICROBIAL COMMUNITIES WILL BE INVESTIGATED WITH NB TECHNOLOGY. AT THE CONCLUSION OF THE PROJECT, WE WILL HAVE IDENTIFIED KEY WATER QUALITY PARAMETERS AND MICROBIAL COMMUNITIES IN SUCH SYSTEMS WITH NB, AND PROVIDE INSIGHTS ON FIELD APPLICATIONS.