FloraKleenâ„¢ removes fertilizer residues that can accumulate over time in hydroponic systems, growing media and potting soils. Use FloraKleenâ„¢ monthly to purge your hydroponic system or potted plants of excess salts that can accumulate as a result of regular fertilizer application. FloraKleenâ„¢ is an excellent final flush, and can be used at any time to dissolve mineral and salt buildup. Its high concentration and low price make FloraKleenâ„¢ the economical choice for maintaining your plants in both hydroponic and soil-based environments.