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As you can see in the pictures of my diary, the fi...

ballzzz420
ballzzz420started grow question 6 years ago
As you can see in the pictures of my diary, the first leaves to grow out are crinkling and curling down. There was some spotting so I thought that this was due to a calcium deficiency but a second opinion would be great. Spotting could be from burn spots from misting water too.
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Week 2
Leaves. Curl down
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Next_Level_Herbs
Next_Level_Herbsanswered grow question 6 years ago
When the the serrated edges of marijuana leaves curls or tipped up like that, it's often a sign of temperature stress, over watering/root problems or extreme humidity levels. When the problem is low humidity, the leaf will also often fold in the middle, like a taco. What's your temperature in your grow area? Is there a hot spot around these plants from the grow light? If this is happening to the plants which are closest to your grow light, that's a hint that the problem may be temperature related. If your light is simply too close, you can move the bulb further away from these plants and this issue may resolve itself. However, these leaves are showing symptoms of heat stress, without light stress (burning / spotting), so it's more likely that the light is a good distance away and the heat just isn't being controlled properly. If plants are also droopy, it's likely you're dealing with watering or root problems. Good ventilation and an exhaust fan will go a long way towards preventing all these problems. If the whole grow area is too hot with stagnant air, you will want to consider venting out all that extra heat. Having good air movement, like a small fan in your grow tent blowing over the tops of your plants, can help prevent hot spots from forming directly under your grow lights. In general, if it's too hot for you to be comfortable, it's too hot for your plants
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Jeff123fish
Jeff123fishanswered grow question 6 years ago
I see just a couple of things your light is too close for the size/age of the plant you do not have any kind of deficiency but you maybe seeing some airflow issues the wavey leaves is the plants way of trying to regulate it’s humidity. I wouldn’t worry about it at this time it will be fine. I would raise the light a foot or two and begin lowering it back down as it gets bigger or let the plant grow into the light. As for nutes a plant in good soil shouldn’t need any nutes until week five or six
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wickedb
wickedbanswered grow question 6 years ago
I agree with Stick
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Hawkbo
Hawkboanswered grow question 6 years ago
Is your ph good pal? It could be the temp/RH% or too much wind but could also be slightly out of whack ph which would result in lock out and spotting in some cases. Hope this helps best of luck
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Stick
Stickanswered grow question 6 years ago
I don't clearly see any clues about nutrients deficiency or nutrients excess. Maybe you could add some more detailed pictures? From what I see (slightly curly/wavy leaves), I'm thinking about a bad air-flow. The same kind of trouble appears in my closet when then fan is off. I'll be around, good luck with this baby!
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