Our Process Scale up process for HaloFD proprietary cyanobacterial strain initiated in 1L containers. After being moved to larger containers, material is carefully transferred into a clean vessel weekly. HaloFD seed cultures are grown for 1-2 weeks before being transferred. The cultures are constantly aerated through the seed growth process. HaloFD is then transferred to 700 gallon vats for pilot scale cultivation. Abundant brackish water is sourced from the nearby Patuxent River.