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Grow QuestionsDWC: Brown spots and pale leaves on the 2nd week

DWC: Brown spots and pale leaves on the 2nd week

need4weedstarted grow question 4 years ago

What's up with these brown spots, is it calcium deficiency and slight paleness? Nutes: CaliMagic 2.5ml/gallon, MaxiGro 0.3tsp/gallon, RO water, total 0.9EC - res was changed 6 days ago. Should I worry?

need4weed

need4weed

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Leaves. Color - Pale

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The8thChevronanswered grow question 4 years ago

Check your pH first and foremost. Then make sure your airpump is doing its job aerating the roots. If that's good just top off the res every day with pH'd water. Your EC is probably a bit high for a plant that small, but it will probably grow into it.. Always remember, if all else fails, do a complete res change. I also recommend some armor si and hydroguard. Armor si helps your plants get nice and sturdy and hydroguard protects your roots. Diamond nectar is also useful later on to help with nutrient uptake but its not entirely necessary.

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need4weedanswered grow question 4 years ago

I'll give her a res change soon if it gets worse, let's wait and see. Again thanks for your input!

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need4weedanswered grow question 4 years ago

I get a lot of bubbles in the res from 2 pumps and PH is quite stable between 5.8-5.9 with this last res change for 7 days now, actually the most stable I could get than my entire first grow. Perhaps this also could be the reason, the PH is not swinging to above 6 and not all minerals are being absorbed - although I heard stable PH + EC means you are spot on, don't know if this is true. Or a lockout due to the heavy feed (I'm actually doing 1/3 of GH recommendations). Thanks a lot for the tips. I'm using Armor Si + Diamond Nectar (did not write it the question due to text size limits), but I cannot find Hydroguard here.

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