This project seeks to improve process efficiencies in inoculum production systems in hatcheries and mass culture grow out systems in land-based seaweed aquaculture facilities through selection of light sources with the appropriate spectral qualities and intensities as well as efficient carbon delivery and mixing systems. Laboratory scale optimisation trials on tetrasporophytes of A. armata and A. taxiformis will be validated under scaled-up industrial scale systems. The project proposes to trial various commercially available light sources as well as carbon delivery systems that the industry could adopt.