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Please check the last 2 photo.. its been 31 degree...
420_liquidsunstarted grow question 6 years ago
Please check the last 2 photo.. its been 31 degree C last couple days, so is it heat stress? The other plants has no signs of any thing?
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Athosanswered grow question 6 years ago
Yeah, it's heat stress. Increase the distance to the bulb. Now the last picture... are you sure you did not feed anything? Those spots look to me like nute burn. What kind of soil are you using? What about your water source?
Stickanswered grow question 6 years ago
Hi there! Yes this looks like a heat stress / light burn. You may have a weak phenotype. You should avoid any kind of spraying unless it's really necessary (nutrients lockout or bugs crawling around..). I also recommend to lower down your day&night temperatures and increase the distance between your plants and your light by just a few inches. I'll be around, good luck with these beauties!
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FlavoursUkanswered grow question 6 years ago
Hi,
Your last two photos definitely show signs of heat stress, try not to exceed 30 Degrees C 28 Degrees C is a nicer temperature and more ideal for them. Raise your light a few cms to around 60cm and that should keep it a slight bit cooler. Get a fan or two in there as well if you haven't already. Hope this helps
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