Botanicare's AquaShield Bio-fungicide Water Treatment Solution is a mixture of several strains of beneficial bacteria, including Bacillis Subtillis, Paenibacillus Polymxa, Bacillus Circulans and Bacillus Amyloiquefaciens. AquaShield helps seedlings and cuttings root faster and with a higher success rate by colonizing the root zone of the plant and forming a barrier against harmful bacteria associated with Dampening Off and root rot. AquaShield is safe for use in soil gardens, soilless mix hydrogardens and aeroponic growing applications. Best when used right after planting seeds or taking cuttings. Rate: 1-3 teaspoons per gallon every 2 weeks for hydro, every 30-90 days for soil.