2.10.2024: Just moving along nicely one day at a time.
2.11.2025: Gave 32oz of water at 6.3ph. The plant is stocky and bushy. Due to the short stems and large fan leaves, the lower nodes aren't getting much direct light. I'm tempted to defoliate but a lot of seasoned vets say A) you shouldn't defoliate as a beginner and B) if the fan leaves act as "solar panels" i'm afraid that will stunt.
2.12.2024: Day 24. Steady as she goes. Temp at 74 and RH is 58%. First sign of white tips on new growth. After some research it could be the start of light stress/burn or something nutrient related OR it could be nothing and normal. I very much want to defoliate the two large fan leaves in between the 4th and 5th nodes as they are completely blocking the lower notes. Opted for tucking instead.
2.13.2024: Day 25 from seed. No change. Still have some white tips but only on the new top growth. Not much vertical growth still. Plant was dry today and felt light so i watered 64oz of 6.4.ph. Seems to be drinking faster now. Raised the light to 16 inches from top of the plant.
2.14.2024: Day 26. Moving along. No water, no light adjustment.
2.15.2024: Day 27 from seed. Plant is healthy for the most part. New growth on top have some white tips and i'm thinking its from light stress. Light is 18 inches from the top of the plant and still at 112 watts Few sets of large fan leaves are blocking the bud sites from light and its all over the place regarding development. I want to clip them but afraid it'll stunt.
2.16.2024: Day 28 from seed. End of week 4 from seed. Top 2 inches of soil were very dry and pot felt light so i gave it another 64oz of water at 6.3ph. 8 to 10oz of run off. Run off tested at 6.4ph, 2100ppm. Having temp challenges so i shut the humidifier off. Currently sitting at 75 with 47rh.
@Heretic, i'm shooting from the hip here but i'd guess somewhere in the 375-450 range. At the time of this response, i'm at 12 inches from top of the plant at 50% power or 75 watts. if you check the light's specs, 50% power at 12 inches should be somewhere in the 400 ppfd range.
I really appreciate your grow diary!! I'm on first grow and alos using the xs1500pro and everything was great but I also notcied the white tips around week 4/5. I've searched high and low for other users with this light. Right now I have it at top of the tent on 100% so about 30 inches away from tallest plant. I did have it about 18 inches on 80% but definitely had some light stress going on. I would like to run a couple few plants at different stages so that is why I'm testing the light where it is. I've noticed several users of this light reporting white or yellow tips on top growth. I'm also running 20/4
