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Maincardstarted grow question 2 years ago
Is this from heat stress or calmag deficiency it's day20, using tap water ph6, 5. Didn't use any calmag so far. thx
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Leaves. Other
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crimsonechoanswered grow question 2 years ago
there is no calmag deficiency. there is cal and mag deficiencies. those are two different things that exhibit different symptoms.
nothing wrong with your plant. dont worry about it too much.
GrowingGrannieanswered grow question 2 years ago
Heat stress... but only minor ... calmag is not needed (why WOULD it be?!)
Good luck!
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gottagrowsometimeanswered grow question 2 years ago
Well everything you said you are given would more than likely hold enough calmag. Idk about your rhizotonic but mine is only used for sickly plants. As a back up nutrient, it's meant to be. I've biocanna biorhizotonic. It's kinda in the name. Tonic.
It's light heat stress. Are you blowing a fan directly above your canopy it will lower the canopy temp a lot.
Either that or move the light further away as you are in veg you don't need to have to it too close. 45-60cm from top of canopy and maybe lower it to 65% for a few days. Idk your light but it seems strong if it's causing that or you need to set up an exhaust and keep your grow room as cold as you can. But you'd be surprised at how much a fan will lower the canopy temperature.
Good luck.
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