The pH was around 6.0-6.5 for about a week. I have brought them back down to pH 5.6, and done a new nute change. I am using Advanced Nutrients Sensi Grow, along with voodoo Juice and B-52. I also used revive on them this last nute change to help. Not sure whats wrong with these guys. The dark green color is draining from the leaves, the leaves are also drooping. The stalks are also turning a purple color. Any help would greatly be appreciated.