Have a lil issue going on at day 58 from sprout. Roughly 4 weeks into flower, growing in FF happy frog, fabric 3 gal bag, using FF trio for nutrients at 1/2 strength. PH at 6.5 for every watering and feeding. I only feed twice a week. Using a electric sky VS300v2 as high as it will go in my 5x3 tent. Have the dimmer knob around 3/4. These spots on the leaves don't seem to have any pattern as to where they show up on the plant, some were at top, some at the bottom, as well as in between. I cut these off last night and that many more have showed up today. Any idea what this is and how to go about treating it? Thank's a bunch. Also, the plant is a northern lights auto from growers choice. Temperature stays between 77-79 during the day and 66-69 at night. Humidity fluctuates between 44-49%