Photobioreactor (PBR) experiments were carried out in custom lab built 1L reactors. Initial volume was set to 800mL of media A with 5mM phosphate and 10mM calcium. PBRs were illuminated and heated with adjustable daylight LEDs set to 750µE/m 2 /s light delivery at the surface of the reactor. Mixing was achieved with a magnetic stir bar set to 500rpm and reactors were sparged with 5% CO2 balanced with air at 0.1LPM through a stainless steel sparging stone.