RAS which also known as Recirculating Aquaculture System is very common in European countries. Most of the farmed species is Salmon or trout. In Asia wise, especially in China there are RAS farms for Seabass, Hybrid Grouper, Turbot & etc. Malaysia is in a very early stage of development for RAS farming even though started very early in 2008, while Singapore is picking up quick due to the food security policy since pandemic covid-19. However, the development of RAS shall not be focused on the system equipment itself only. It should be in several areas holistically such as broodstock management, hatchery technology (Green House Mesocosm), optimized RAS design factor a.k.a NutricixTM (which include culture tank design, optimized flow rate, solids removing rate, CO2 degassing rate, bio-treatment optimized sizing) for nursery (Enhanced Quarantine Fingerlings a.k.a EQF) & grow-out, solids waste recycles as well as Product Marketing (taste) & Quality Assurance. These areas should also be integrated with Artificial Intelligence for an optimization along the development. And Hybrid Grouper Epinephelus lanceolatus x Epinephelus fuscoguttatus would be the species that should be focused on Southeast Asia RAS players.