I have the current culture solutions system I have 8 13 gallon containers and 2 1000 watt lights im using current culture nutes and cal-mag and uc roots I'm growing auto pounder for the second time the first time they only got about 4 inches in two weeks so I started over this time hoping to get them to grow I started with 150ppm nutes current culture says on grow guide and ph is fine between 5.5 -6.5 and water temp 65-68 when I added cal-mag the ppm went to 300 right now the plants have only been up a couple days and they look ok I have 3 plants that are older but just not growing very fast that's what happened last time I must be doing something wrong using ro water please help