Physan 20 as a Preventative in the Reservoir

Physan 20 can be added to the hydroponic reservoir to prevent pathogen growth in the reservoir. We recommend starting with a rate of 1 teaspoon per 50 gallons of water. Normally this will be sufficient; however, this can be increased up to 3 teaspoons if needed. This maintenance program should be employed every 7-10 days