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There anyone who can tell me if this would be a calcium or boron defic?

No, I don't have one. The light is about 6 inches away

Hey all, could you help identify what's wrong with this girl? She's a mother whose been regenerated once and is vegging right now. Under a 150W HPS light with fans and temps around 70-80. I'm suspecting its either a calcium or maybe boron deficiency. What do y'all think?

Is this doable? I've read that you should store you're curing herb in mason jars at temps around 65-75, but in my apartment its consistently around 80 and out of my control. So can I put it in the fridge instead?

Under CFLS (12 inches away), in desert potting mix mixed with perlite. I had given them some MG a few weeks back then have been flushing it with distilled water every time I water it since. It has had this problem before flushing and it has not improved. Temps are no higher than 85 during the...

I haven't watered in a week.

bump..can anyone help?

My plant has been doing pretty good for the last couple weeks until I noticed that the lower sets of leaves are starting to turn yellow. I didn't think much of it until I noticed today that there are now brown spots on the lower leaves. What should I do? My setup is in this thread...

Another thing, why are my leaves so wrinkled? Could it be the result of overwatering?

Thanks all. I'll get some Cal-Mag right away and check the pH. I'm also repotting it into a bigger pot this weekend.

bump. anyone?

Just took this one out of it's humidity dome a week ago but it's shown yellow spots in between the veins on the newer leaves. You can see it pretty clearly in the pictures, but it seems to look worse in person. I'm growing in soil (cactus mix with extra perlite), and I water with room temp...

Hmm, it looks pretty good to me. Those spots on the bottom leaf, that is light burn right? I have similar spots on one of my leaves from water droplets.

Well, they improve when I put the domes on which keep the soil more moist. They also improved when I gave them all purpose ferts. But nutrients don't explain why removing the humidity dome makes the leaves light green and growth to stagnate.

Here's an example of what I mean: this is another of my plants. You can see that on one pair of leaves, the ends are curled. The leaves did not really start to grow until I put a dome over it, and the tips never fully straightened out.

It has been pretty hot the last few days, getting up to 85 under the lights during the afternoons, but usually it sits around 75-80. It is in soil (cactus mix w/ extra perlite) and I've given it some all purpose ferts (12-4-8 ) at half strength once. Because of the domes, I only have to water...

bump. anyone?

What kind of lights are you using? What is the Kelvin (K) output?

Huh. I honestly don't know. My best guess might be you gave it too much? How long ago was this?

First of all, I live in a high altitude, relatively dry climate in the Canadian Rockies, as a result I have been unable to grow a seedling without a humidity dome. I have bought a humidifier to compensate, and have been maintaining the room at at least 50% humidity. Now, I am trying to ease...