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Gmalin105 started grow question 3 years ago
Small red dots appeared after feeding. Slowly sprend across a few of mainly the fan leaves and has discoloured to a much paler/ yellow colour. Will a mini flush help this problem?
12 weeks
DP ACC Gmalin105
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12 comments · 3 years ago
Week 9
Leaves. Color - Red or pink
Removed answered grow question 3 years ago
First, It appeared after feeding; second, you gave PK where there was no sign that it was needed. Those rust spots are a classic sign of Potassium (K) toxicity. Flush and give it plain water for at least a week, so it can recover, then restart biobloom only, do not use PK 13-14 unless you see signs of deficiencies.
Experimentgreen answered grow question 3 years ago
Hi there, so when I had a similarly reddening of the leaves it happen twice for two reasons, the first attacked all leaves and was due to calmag overdose, the leaves eventually crisp and died off
The second was only some leaf tips, the the ones.most exposed to light was due to calmag deficiency. Yours looks more similar to the deficiency. Try a low calmag dose like 1/4 tsp per gallon and see if the problems doesn't get any worse.
Happy growing.
Michka answered grow question 3 years ago
Red spots are calcium deficiency.. PH variations ? Too warm? Just give her some calmag on your next feeding, and she will reward you... Good luck with your grow !
Stick answered grow question 3 years ago
Hi @Gmalin105! This looks like a cal/mag deficiency, this may have happened because of wrong pH in your feedings, or too much Potassium. Do you check your pH? I would stop pk13/14 now and give her a good flush for a few days, only plain pH'd water. Then if she's not showing signs of recovery (on new growth) after a week, add some cal/mag to the water and see how it goes. Hope this helps, keep us up-to-date and happy growing :facepunch: