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Spotting on leaves
Ner0zstarted grow question 3 years ago
Hey I've got some spotting on all my leaves. My PH is dialed in at 5.8 for RDWC. Using gh flora trio plus rapid start. 4m micro, 5m gro, 1m bloom 3m calmag. Rez temp is 71f
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Leaves. Veins - yellow between
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Ezzjaybruhanswered grow question 3 years ago
It does look like calcium or possibly magnesium but I’m gonna say , regardless of whatever action you take.. also bump that bloom up.. your main source of phosphorus is in the bloom nutes with GH so at 1 ml you def don’t have enough phosphorus in the mix. If you break down what you’re putting in as far as NPK it’s something around a ratio of 3.3 to 1 to 3.8
nitrogen 3.3
phosphorus 1
potassium 3.8
Math might not be perfect there but it’s not an optimal amount of phosphorus. I’d bump your bloom up to 2.5 and see how it responds.
Ner0zanswered grow question 3 years ago
I use RO so I've had 3m calmag in since the beginning. Thanks I've got a rez change tonight so I'll try a fresh bottle of calmag, bump my bloom up and see how they take it. Thanks guys
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Hashyanswered grow question 3 years ago
Does look like calcium deficiency. Have you been using cal mag for a bit or only just introduced it.
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