FloraKleen® removes fertilizer residues that can accumulate over time in hydroponic systems, growing media and potting soils. Use FloraKleen® monthly to purge your hydroponic system or potted plants of excess salts that can accumulate as a result of regular fertilizer application. FloraKleen® is an excellent final flush and can be used to dissolve mineral and salt buildup. Some sizes may not be stocked in all locations.