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Activity Forums Grow Tips Yellowing between veins of lower leaves – First time grower.

  • Yellowing between veins of lower leaves – First time grower.

    Posted by Pride on April 17, 2021 at 2:16 am

    Hi growmies,

    First off, thanks to everyone who views this thread, and thank you for all the wonderful information everyone is posting!

    I am currently 3 weeks in to my first grow. I have 3 White Widows from ILGM growing in a Mars Hydro 2×4 kit setup. I am growing in Coco Coir + Perlite (Purchased as a brick, rehydrated, and buffered with Cal-Mag) and am using Nitrosol as my nutrient (Only thing easily available to me where I am located).

    Today I transplanted my girls into larger containers (Adding some Mykos Mycorrhizae to the roots) and noticed that a few of the lower leaves on one of my plants is starting to develop a slight yellowing in between the veins of 2 of the lower leaves, as shown in the pictures.

    If anyone could provide some information regarding what this could be, I would greatly appreciate it. If you have any additional tips for new growers using my particular setup it would be appreciated!


    mav replied 3 years ago 4 Members · 4 Replies
  • 4 Replies
  • oneeyedcatcannabis

    April 18, 2021 at 10:55 pm

    This could be magnesium deficiency, it can happen when growing in coco even when you buffer it with cal mag. This happens a lot if you are using RO water. I also just looked up Nitrosol and this looks like a product that would work better with soil and not a coco/peat mix.

    • Pride

      April 19, 2021 at 6:48 am

      I came to the same conclusion after a little more research. Unfortunately Nitrosol was what was available to me, maybe if this grow is somewhat successful I will invest in something a little more suited to my exact setup. The other 2 plants are looking pretty healthy, and the rest of this plant is starting to look really healthy as well. I may have just been scared to over-feed them and over Cal-Mag them, I have bumped everything up a little and they seem to be pretty happy after the last few feedings, so fingers crossed I got it early and the rest of the grow goes smooth. I was sent something called “XLR8” by a company named “Veganixs”, and it seems to have quite a few things in it, I have just been a little paranoid to introduce it to my feeding as I couldn’t really find a heap of information on it. I was given it as a freebie when I ordered my CalMag from eBay.

      I may contact the seller and ask if they have some info on how to use it effectively.
      Thanks for your time everyone!

  • ganja_gary

    April 22, 2021 at 4:01 pm
  • mav

    May 7, 2021 at 6:24 pm

    Very informative video.