hi I'm a new grower and I'm having issues with my plants. There yellowing around the entire outside of the leaves and Browning at the tips. And I'm one of my plans the leaves are cupping upwards towards the light. Is there anyone that knows what could be happening? I have a 4 x 4 tent and I'm using a thousand watt metal halide light system but I only have it set at 600 watts right now. The temperature towards the top is at 81 degrees and at the bottom it's at 76 degrees. Although it was warmer before I put a carbon filter and fan system in. I also have a fan in the center and two small ones on the side circulating air. From the photos it looks like it could be heat stress, light stress, or calcium or magnesium deficiency. I just ordered some calmagic to see if that will help and I raised my light as high as I could and lower the temperature of it with the vent system. but does anyone have any other suggestions they can help me with? most of my plants are starting to do this now... I also have a pH meter and I've been keeping it around 6.5 so I don't think it's the pH. And as far as a magnesium or calcium I don't see how it could be that even though it looks like it online from the symptoms because I also use foxfarm Big Bloom and tiger bloom supplements. I really need help PLEASE. I don't want to lose all my plants before they even leave my veg tent. So yes obviously plants are still in vegetation. Any tips will help guys???
Need Help
- Thread starter Yankee01
- Start date
Hey welcome yankee! 
I will be back, I skimmed over your post, but will go back up and take a better read
I will be back, I skimmed over your post, but will go back up and take a better read
Ok so, it looks to me as if your getting a bit of heat stress going on. I see a bit of nute burn, but just a minor case, and I think the main problem is light burn.
- Thread starter
- #4
thanks man I really appreciate it
When plants are in veg, they really don’t need much for light. I grew these two plants all the way from seed with a small 2’ T5 light.
- Thread starter
- #6
I also have another photo I'm going to upload which is newer than the other 4 that I took yesterday
I appreciate it, but no need to. I commented above^
- Thread starter
- #8
Gazoo
Member
Low humidity can make plants more likely to get stressed by the heat. Sometimes you’ll get symptoms that look like heat stress even if it’s not that hot, and the symptoms are worse because the plant is being affected by very low humidity! Dry, hot air will commonly tip up the edges of leaves
