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Brown Spots on Leaves
elevensixty6started grow question 4y ago
I've got some brown spots showing up on the Wedding Cake leaves, first thought it may be mold but it doesn't rub off and I sprayed both plants with neem oil about a week ago just in case. Could be CalMag deficient? I use RO water with about 150-200ppms in 3 liters once a day.
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sir_isOanswered grow question 4y ago
I'd use a bit of calmag, slightly calcium biased (like 4-8: 1 vs magnesium) and sulphur tbh.
Remember, calcium and magnesium are separate elements, calcium tends to buffer things and is more abundant than magnesium, in nature, quite a bit more. Lots of people simply think "calmag", which is typically too biased towards magnesium (because of indoor, hydro and semi-sterile mediums).
Ze1roanswered grow question 4y ago
I'm with @BraveheartGenetics.
You're in the stretch of flower so it may be calmag deficiency like @sir_isO mentioned.
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sir_isOanswered grow question 4y ago
The other thing is, though sort of unlikely. Remember, plants need chlorine...you might even want to use tapwater now and then.
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BraveheartGeneticsanswered grow question 4y ago
Hi mate, your plant is looking really health and unless its getting worse I wouldn't worry too much about it. You may be having PH fluctuations which could cause this but can't be sure. Hope this helps, good luck and happy growing
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