I flipped to flower about 3 weeks ago (Dec 21st) - up until then I had no issues. Then about a week ago I noticed little spots on my plants. I hoped they would just go away but theyve gotten progressively worse Each plant seems like its having a seperate issue. I believe it may be some kind of deficiency or lockout but am not sure. Plant #1 I have no idea what it is. I rubbed plant #2 to see if the orange stuff was rust fungus as far as I could tell none of it rubbed off onto my finger Heres some more basic info for context *Strain: Colorado Gas Can from Hoku Seed Co *Indoor Grow *Soil is Fox farm ocean forest in 7 gal pots *Size of grow tent is 5x5 *Light: Mars Hydro TS3000 *Light distance from the top of plants: ~24 inches *Temperature: Lights on 75-78 deg. Lights off ~71-69 deg. (We recently had a cold snap which brought the temps down to low 60's) *Humidity: typically averages around 50%. I checked my sensor data and noticed recent drops to 39% *PH of medium not tested *PPM of medium not tested *No signs of pests *How often are you watering? Watering approximately 1/4 gallon of water per plant every 3-4 days *Type and strength of nutrients used: GH Trio bottled nutrients. I started with light feed during veg and cut the recommended dose in half. During flower I used the medium feed and went with the full amount of recommended dose