things are moving along. big reminder to calibrate your PH meter more often than not. mine says every 30 days, but don't trust them. calibrate every 15days to be safe, or if your starting with tap water like me, then get to know your routine and water. My water measures around 8.4PH straight out of the tap. and about 2-3 drops of ph down into my large jug (about2L) gets it around 6.4-6.8 PH usually. however; I became complacent. Don't do that. I failed to check my calibration and my meter drifted slowly over the month and I unknowingly slowly screwed up my ph. uhhh, long story short. watch your grow everyday and don't get to comfortable that's when Murphy gets you. Luckily i caught it pretty quick i feel. we shall see, but I got some sun burn too. but it's mild. I caught that quick to. measure your light height often. know your light.
ramble on
things looking great other wise, slow and steady. but this strain is fussy as hell in coco/dry organics.
I noticed your losing color pretty good. I just re read your post in my diary. Because I used PH perfect line, my ph was always bang on. What’s your medium? Peat or coco? I see your running 6.6ph on runoff. Definitely too high for soilless. Phosphorous lockout is likely your culprit.
My issue was reverse, my ph on runoff gradually went down. You may want to look into what you can add to buffer the ph, and lower it. Phosphorous is quite important to flower growth.
Your pistils are still pretty young looking. How many weeks left you figure? Mine started going orange about 3-4 weeks before I chopped.
Looking like some nice buds forming! Your in for a treat come harvest time!