One thing i would keep in mind, lots of people, me included have enjoyed a lot of success using DWC. There is nothing wrong with that particular system. I have never used GH 3part, but i understand a lot of people have used it successfully. The problem seems to me to be operator error. If you want to do things the right way, i would recommend getting your hands on a EC/TDS meter, and also whatever it is you use to measure humidity. Humidity is often overlooked, and without a meter your really just guessing. Do the plants get watered from the top at all?
metalhead419 Reviewed by metalhead419 on . NITROGEN DEFICIENCY ?? Would everyone agree that these young plants are showing signs of N deficiency ? They are about a month old from clone, only been in DWC for 4 days under 600w HPS, PH fine (5.8) room temp 27c, nute temp 20c, good air circulation. They only started to yellow last night. Rating: 5