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    First grow- Yellow older leaves / rust spots

    The yellowing is getting higher up the plants tbh, they look worse now! :( Iv given some epsom salt now in the hopes it helps, Cal/mag iv been told should be 3:1, mine is 100/1
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    First grow- Yellow older leaves / rust spots

    I think i underfilled the pots with soil, the all mix sank alot more on the first watering than i expected. Next grow i will be filling the pots with more soil, The plant middle right, was started in a small pot and transplanted, it has more soil in the pot and that the most healthy plant...
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    First grow- Yellow older leaves / rust spots

    Everywhere i have read it say that plants this age cannot handle maximum light at this stage, its a mars hydro fc e 6500, are you saying 100% of the light? so turn the dial all the way to max? I think i have overwatered them for a week or 2, but have now backed off and they are looking better...
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    First grow- Yellow older leaves / rust spots

    Think im getting somewhere, the light intensity was too strong, i must have knocked the dial on the light driver and not noticed, i think this was causing the stress, turned light back down and they have perked up, i was confident in my watering ability so this explains it. Just hope i havent...
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    First grow- Yellow older leaves / rust spots

    I was SO confident in my watering ability! they have only been watered when light which is usually 3 days between watering's, and i water until i get a dribble of run off. But iv never experienced any underwatering symptoms, so perhaps i have been watering too much. The reason i started in...
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    First grow- Yellow older leaves / rust spots

    TBH i think iv been under feeding N, as at the start in week 2 i thought i had some nute burn so backed off to half strength for the next week 3, then went full strength but watered with plain water a few times. Last night i gave 3ml/l of Bloom and 1ml/l or Grow, hasnt done much so far, i...
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    First grow- Yellow older leaves / rust spots

    They are 3 gal pots, i have been PH'ing the water to 6.2 to 6.5. I was told i shouldnt adjust PH in soil as it can cause issues, but iv also been told that not PH'ing causes issues. There are some roots sticking out the bottom of the pots, but only a few, i should have filled the pots with...
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    First grow- Yellow older leaves / rust spots

    I have hard water i know i have high calcium, however im not sure on the Magnesium, I havent kept a diary which is a major mistake, if im honest i dont know if iv under fed them or over fed them, iv followed the biobizz schedule pretty much, but gave half strength during week 3 because i...
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    First grow- Yellow older leaves / rust spots

    Hi Guys First grow, Mephisto genetics, end of week 5 today. some of the fan leaves on a few plants have started to yellow, My first thoughts is that it is Nitrogen deficiency, but there is some small rust coloured spots so im not sure. Im using Biobizz all mix, with Grow and Bloom. Iv...
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