The present invention provides aquatic biomass having enhanced growth and methods for selecting and growing a mix of aquatic organisms to maximize production of such a biomass. In one aspect, for example, a method of enhancing aquatic biomass growth is provided. Such a method can include preselecting at least two organisms selected from the group consisting of an algae mixture, a cyanobacteria mixture, and a diatom mixture, combining the at least two organisms at a growth enhancing ratio in a growth environment, and growing the at least two organisms as an aquatic biomass under environmental conditions in the growth environment that further enhance biomass growth, wherein the aquatic biomass growth is synergistic.