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Does anyone know what can be causing theese marks ...

ThePotFactory
ThePotFactorystarted grow question 7y ago
Does anyone know what can be causing theese marks and stains on my leaves? View week 6 for pics.. its on the top leaves mostly. Water 5l per plant every other day. Ph at 5.7-5.9
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Week 6
Leaves. Other
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Athos
Athosanswered grow question 7y ago
Calcium excess gives those white spots on leaves, reduce the cal-mag dose. 1 ml/lt is I believe around 0.5 EC (250 PPM), get it below 0.4 EC (200 PPM), I would try with 0.3 EC (150 PPM) worth of cal-mag, see if that helps. The spots will not go away, but no new leaves should be affected.
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OutForReal
OutForRealanswered grow question 7y ago
Hello ! I would say I slight over feeding but it could also be the ph , do you check the runoff ph ? It may change from your original watering ph.
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