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Hi Shizzy -
For that much wattage, less than a foot is too close, in my opinion. I think you may have indeed found your issue. You will really be able to grow some rockin' massive bud with the light you're throwing, but I think it was a good idea to back it away again a bit. The hand test is a good test, though it sounds like your wife's hands are the ones to use. Again, good job so far... until their minor sunburn they were looking nearly perfect (gotta love that!).
Check this out - you have what 1200w... roughly 180,000 lumens between the 2 bulbs?:
Hey Shizzy!
Really nice job on you germination and getting them going. Starting your seeds directly in soil/medium is easiest on the seedlings. Other methods give us piece of mind a day or two earlier because we can see the roots start to develop, allowing us to feel relieved and excited about our success (or lack there of). Ultimately, the way you did it limits handling, exposure to light, and other potential pitfalls. I can see you've been doing the legwork and studying up. Good job and great start to the journal!
On your issue... Don't panic and look to basics. Environment changes are probably your culprit. Do you keep a circulating fan in the room? I like to have a fan blowing across the area just underneath the lights, to keep heat from building at canopy level. Not too powerfully, but so hot air doesn't have a chance to build up if that makes sense (just reaching here, you may already be doing this). EDIT: looks like you have a fan...
What are the temps/RH at the canopy level? That leaf looks crispy dry to me and like its folding over on itself to protect from light intensity, heat or dryness (perhaps combo of the 3). You have some serious wattage going... Do you have enough distance beneath the reflectors? Was that second leaf close to top? We're there more like that one?
Hi Shizzy -
For that much wattage, less than a foot is too close, in my opinion. I think you may have indeed found your issue. You will really be able to grow some rockin' massive bud with the light you're throwing, but I think it was a good idea to back it away again a bit. The hand test is a good test, though it sounds like your wife's hands are the ones to use. Again, good job so far... until their minor sunburn they were looking nearly perfect (gotta love that!).
Check this out - you have what 1200w... roughly 180,000 lumens between the 2 bulbs?:
Hey could someone explain this chart. I've seen it a couple of times and wondered how it works.. I'm still super new to growing probably starting at the end of this monthHi Shizzy -
For that much wattage, less than a foot is too close, in my opinion. I think you may have indeed found your issue. You will really be able to grow some rockin' massive bud with the light you're throwing, but I think it was a good idea to back it away again a bit. The hand test is a good test, though it sounds like your wife's hands are the ones to use. Again, good job so far... until their minor sunburn they were looking nearly perfect (gotta love that!).
Check this out - you have what 1200w... roughly 180,000 lumens between the 2 bulbs?:
Jfault on the top of the chart you have possible bulb wattages as well as the wattage expresses in lumens or actual number of rated light the fixture exudes....to the left we have the proposed amount of distance from the light in inches.....now the rest of the chart shows a. Red which means the distance is too close, b. Yellow which determines the optimum lighting distance for the chosen fixture and finally c. blue which tells us that at the proposed distance the light is too far from the plant. To use the chart select your light and choose a distance in the yellow space.....close enough to eliminate stretching, however far enough to avoid my issue! Cheers.
One thing I did fail to mention and something that I find important is my light schedule. I started at 18-6 then ran back one hour a week to 16-8 which is my current veg regime. However I am attempting to use a diminishing schedule my entire grow. The last two hours however will go straight to twelve twelve where I will again use the diminishing light schedule down to 9 hours per day. As I am limited in my indoor knowledge but have done quite a bit with friends from Benbow in Humboldt back in the nineties.....the fact that our sun uses the same routine, albeit a different animal, makes the choosing of the light schedule ultra important in my mind. After having read so much about GLR and lnowing that system does not currently work for me as I must turn on and off my own lights.....I thought my idea could be the next best thing.... I do not know but please chime in.
You don't have a timer for your lights - is there a reason other than $? I went to a thrift store the other day while killing... time. I was amazed at how many used electrical timers they had... Dozens, for cheap. I never would have thought to look in a thrift store for something lie that, but I was tempted to buy a bunch just to have 'em.