Working with a Canadian biotechnology firm, we have manufactured a custom blend of bacterial strains with concentrations of over 80 billion cells/mL. In their planktonic state, these bacteria serve as a highly nutritious food source for corals and zooplankton. More importantly, these complimentary bacterial strains form nutrient consuming biofilms. Size: 50 mL WHAT IS RF-GENESIS? Concentrated mixture of dormant bacteria. Working with a Canadian biotechnology firm, we have manufactured a custom blend of bacterial strains with concentrations of over 80 billion cells/mL. In their planktonic state, these bacteria serve as a highly nutritious food source for corals and zooplankton. More importantly, these complimentary bacterial strains form nutrient consuming biofilms. DIRECTIONS: 1 drop per 25 gallon (95 liters) of total system water volume daily.