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Yellow tips. Might be the lights??
facingbacktofrontstarted grow question 5y ago
I'm thinking of light burn or nute burn. On new growth and just at the tips. Not all the plants, probably on 1/4 of them. Watering 3 ml/gal cal-mag, 0.5 tspn/gal Epsom salt. RO water. 450 ppm. 17 Days into veg. Lights 630watt fluence at 28 inch at 70%. Lowered now to 50% at 35 in
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OutForRealanswered grow question 5y ago
A light stress/burnt would have been different with some burned spot on the leaves . What I can see is burning tips and yellowing that is starting from the edges of the plant so it could be related to an excess or a deficiency
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