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Grow QuestionsWhat Deficiency?

What Deficiency?

Unkrautstarted grow question 4 years ago

What deficiency does this plant have? I have 15 plants inside this tent, all get the same nutes, all look great but only this one has these grey marks on the lower leaves

Unkraut

Unkraut

Unkraut

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Leaves. Color - Black or grey

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blendmedmedmananswered grow question 4 years ago

it could just be that the strain is picky? or just this plant, it looks like a mix of ph and cal mag, if i was you i would flush the plant until your run off was at 6 ph. let it dry out and add kelp to its feeding diet as well as either a cal mag supplement or Epsom salts , by adding kelp it will help that plant rebound quick, also you can use the kelp on the others as well. like every 2-3 feedings. but like i said looks like a cal mag thing that may just be the plant locking out nutrients cause she could be a picky eater

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Unkrautanswered grow question 4 years ago

All plants got the same feeding with PH of 6.5 - 6.8 I'm using biobizz alg-a-mic + canna calmag(cal/mag only every 2nd watering) @gmslave : This is just the small tent...last harvest is still drying in the big tent..

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GMSgrowsanswered grow question 4 years ago

Looks like a simple ph issue to me but I would check your runoff ph and ec levels and go from there. That amount of plants in your small grow are is going to be more of a problem. Once they go into flower that room will be way to jam packed and light penetration will be a huge problem. Just my 2 cents. Cheers friend

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