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i have a problem all the plants have this problem ...
Philindicusanswered grow question 5 years ago
You have a bit of everything going on. Looks like the middle left plant with the drooping leaves is being over watered. Let her dry out a bit more than usual if that is the case she will respond by holding her leaf blades straight out again. Start to establish a wet/ dry type watering cycle. The plant in the left front with the curled leaves looks like phosphorus or potassium excess. You should flush her with water. Let her dry out. Don't feed her the same nute strength as your other healthier plants use a lower dose mixture (1/2 dose) until you see new normal new growth then slowly increase her dose. One other factor that can cause theses symptoms is if you use water that has chlorine in it. Some plants can be more sensitive than others and chlorine will build up in the soil over time. If this is the case fill a bucket with water then leave it out uncovered over night or use an air pump and air stone and run it for a few hours to gas off the chlorine. Hope this helps your situation.👍
Stickanswered grow question 5 years ago
Hi @kestpseudsmoker! To me it looks like a combination of different issues. Firstly, your plant is probably heat-stressed. Indeed, your daily temp is a bit high and your lamp-to-plant distance is a bit low. Raise up your light a little bit and use the universal hand test to ensure that the canopy won't get too hot. Secondly, if she has started to bloom, then this is probably a potassium deficiency. I don't see any nutrients in your diary, don't you add anything to your waterings? If no, that's probably the main reason for these spots: a plant entering into the flowering stage will ask for loads of potassium compared to the vegetative stage, and the symptoms are very similar to what you're experiencing. Hope this will help, let me know in the comments section if you need any further information, and happy growing! 👊
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OutForRealanswered grow question 5 years ago
So it's an excess or a deficiency because it is starting from the bottom of the plant ( like every nutrients issues ). I would not bet on heat/light burn here because the signs are visible on the lower leaves but not on upper leaves and light is burning what is close to it. Now with a 7ph you may have ph issue even if you can grow in soil with a 7ph you should prefer 6.5 and the 0.5 difference can change a lot of things. Your plant also seems to suffer from a Nitrogen excess as they are really dark green and the tips of some leaves are clawing . Now if your light is a 250w hps with cooltube the distance is good but if not you are too close from the too of the plants. I recommend you to go low on the nitrogen for now and find a way to correct your ph ( ph down)
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DankGardeneranswered grow question 5 years ago
Back off your grow light a little signs of heat stress. Make sure your temp reading is at the canopy( the top leaves). Not the room temp. Hope could help
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