EZ-Clone? Clear Rez is a pH balanced, noninvasive water treatment designed to keep all of the internal workings of your cloning system crystal clear and operating at peak performance. It is designed to be used through out your entire cloning cycle as a possible preventive measure for a multitude of problems in your reservoir. It is suitable for all Hydroponic, Aeroponic and Soil applications. Keep it clear with Clear Rez.