But visualization was only one part of the tracking. The other was to link up the movement, cell size and shape to another critical factor, metabolic state. In a fermentation environment, this is critical to ensure production is consistently at its highest level. Changes in metabolism can directly affect the performance of the system. The team was able to correlate the velocity of motility to the various stages of bacterial growth. Lower motility meant a lower level of performance and the need to reinstate harmony in the culture. The result provided an overview of the entire population without having to perform a number of tests. One look was all they needed to detect any trouble.