Are you using Calmag+ with the RO?
bigtopsfinn Reviewed by bigtopsfinn on . Please Help Me Save My 4/20 Harvest! I have two mothers (Master and Purple Kush) I've been growing for about 3 months now. I have been having a lot of issues with root rot and bad nutrient mixes/supplements, so I decided to flush them with pHed water for a few days before I flower them. I switched them to tap water only at 5.5 pH and 350 ppm on Wwednesday. I am running a 35W industrial air pump with a 4" air stone in the middle of the 5 gallon bucket. Water temp was 62-68 and air temp was 77 since I made the switch to water Rating: 5