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Production date

by Krueger about April 28 - report

I am a new grower and I can't seem to find an answer to this question. My grow nutrients.. plant magic( not a choice was part of a set) the bottle tells me use within 6 months of opening for best use. Then there is use within 2 years of production date. Now I spaced and read 2 years of opening and haven't glanced at the dates until now. Well my grow is dated 20/1/18. Opened Aug 2019. Had this damaged my plants? The last lot had a massive cal mag deficiency, like all big leaves just either yellowed or just dried up. Like I wasn't feeding enough and well I can't give them any more! Now again I'm watching the big leaves die before my eyes! Is it the out of date product?
Answers: 10 • Score 0 • Views: 174
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  • 3.567

    bill59 3.567 points - April 28

    If you post a photo and provide some details, you can get some help diagnosing the problem. I would not use nutrients that are expired. Too much time and money invested in a grow to risk the health of the plants over old nutrients. I'm not saying old nutes won't work, it's just not worth the chance to me. 

    • Score: 0
    • ChAs420
      ChAs420
      8.914 points -
      April 28

      agree's..makes sense

  • 7.317

    king 7.317 points - April 28

    i agree with the above.....  flush and start with fresh nute's at half strength and go from there....... 

    • Score: 0
  • 16

    Krueger 16 points - April 28

    Like I said I'm so new to this and to follow the same process and see the wrong results is heart breaking! My first lot was almost perfection and so I did the same again and my only difference is the date on the bottle! The last lot was the same and just out of frustration I flushed then flipped them and of course my bloom has plenty of date on it and it made some tasty stuff in the end. I should add started with t5 lightThen to hps 400 then to 600.Constant fan etcHumidity levels and temps spot on ishAlso air pots used too Plant magic soil and nutrients(all in 1 package) Ph levels between 6.4 - 6.8 ish Thank for the help! I wish I found this place last grow!
    • Score: 0
  • 17.793

    pipeman69 17.793 points - April 28

    If your from the u.k. try looking into biobizz and canna nutrients. Both are pretty good nutrients to use when growing cannabis.

    And I also like bill59 answer.

    • Score: 0
    • Krueger
      Krueger
      16 points -
      April 28

      Thanks I will have a look into it. I'm still learning and this is another thing to add to list. Check dates ahaga

  • 2.882

    Screwstick 2.882 points - April 28

    I wouldnt risk using old nutrients either, its not worth it when you compare the cost of the nutes to time and money your investing in a grow. If you need the bud for meds you may have to buy what you dont grow.  

    • Score: 0
  • 392

    Chineseeyedgrower 392 points - April 28

    I'm kinda confused when you said your last lot was perfection, so you repeated it, but then did  it just went bad?  Did the plants get sick once you started using the nutes?  I know some people that don't even use nutes for veg, but for me I use them very early on, sometimes even when they are seedlings, so if my nutes were bad I would know right off, because my plants never would be healthy.  That's why I don't understand when you say perfection and then frustration, so something happened, anyways, maybe im stoned and can't comprehend.  Sorry one more thing, how do you know the first lot had a cal/mag deficiency?  Are you using RO water without cal/mag supplementation?  Yea there is a lot of info like Bill said that is missing. Help us help you man, give us bookoos of info.  Let us know Peace man.

    • Score: 0
    • Krueger
      Krueger
      16 points -
      April 30

      As in when I did the first lot with all the just opened bottles etc. Don't give them the full lot start at half and work up. Now from the soil, pots, temps, humidity ph levels were roughly the same. I didn't do anything different or use anything different...  more

  • 5.938

    justme 5.938 points - April 28

    I really doubt that the age of your nutrients is giving you a problem and more like the Ph levels and at what stage and levels you are using each one at. LESS IS MORE WITH NUTRIENTS! Usually when you have old nutrients that lockout you will see what I call jellyfish floating in your nutrient mixture. If you see that in your nutrient mixture you shouldn't use it. It has locked itself out and will do your plants no good. The Ph of your mixture or the lack of a good mycorrihzae and benefical bacteria colony in your medium could be causing your problem. What Ph are you feeding at? What medium are you growing in? Pictures of your plants would have been very benificial to diagnosing your plants problems with for us. Without seeing your plants and just going by your description, I would suggest adding a mycorrihizae inocculant such as Recharge or Great White (don't Ph this solution or you will kill the bennies) to your medium. They will widen the Ph range for the plant to take up needed nutrients when you have a healthy abundant colony of "bennies" in your medium. I would definately slack off the nutrients if you are giving them an extreame level and not getting any reaction from the plant because it sounds like you have a lockout of calcium, magnesium, nitrogen, and maybe more. The soil inocculant should fix your problem. I would want a decent amount of runoff when adding the innoculant so that you get evey spot of soil in your container with it and wash out some of the excess nutrients in the medium. You can go here to diagnose your plants yourself: Diagnose your plants Good luck and happy growing my friend!

    • Score: 0
    • Chineseeyedgrower
      Chineseeyedgrower
      392 points -
      April 28

      Just, he saying his ph is 6.4-6.8 so, if his pen or meter is accurate he should be fine there. I was gonna mention ph also, til i read further down the post.

    • justme
      justme
      5.938 points -
      April 28

      Should be good then with the Ph then. I would definitely re-inoculate my soil with "bennies" Recharge or equivalent. I think that will help the issue immediately myself. Good luck with your problem! We all have had them! Happy growing my friend!

  • 1.082

    Tomwel187 1.082 points - April 29

    I agree with Justme he knows his shit!!! But at the same time I would probably be a little skeptical using expired nutrients especially if they looked weird or off in any way....
    • Score: 0
  • 19.842

    harley24 19.842 points - April 29

    There is no telling what old nutrients may do, but i think you have other issues, such as ph and temperatures myself. Flushing and starting over with NEW nutrients is the best idea imo. Make sure you give the plants cal mag as well. I wish you the best.  Peace

    • Score: 0
    • Krueger
      Krueger
      16 points -
      April 30

      Thank you. I am in the process of giving them a flush and maybe stick some tunes on for them. Anything to make them better ahaha. I may also look into other ways to check my ph as the pen could be wrong and damaged.

  • 8.238

    SubterraneanHomesickBooze 8.238 points - April 30

    I saw your pictures and read some of your information just now. If everything is the same as before, then double check your basics.

    Is it possible your pH pen is out of calibration? can you cross-check your calibration using pH strips or pH drops just to verify?

    • Score: 0
    • SubterraneanHomesickBooze
      SubterraneanHomesickBooze
      8.238 points -
      April 30

      i use pH drops! even if you can afford a good tester it can still be out of calibration

    • justme
      justme
      5.938 points -
      April 30

      I decided I must be color blind. I always has a little leaf problem when only using the drops and since getting a good Ph pen I have had relatively no problems with any discolored leaves any longer. Of course, with the drops you can only get to a close Ph...  more

    • Chineseeyedgrower
      Chineseeyedgrower
      392 points -
      April 30

      I was looking at that ph chart that shows what nutrients are most available at which ph's between 6-7 and I know I am blind, but to me it looks like all the nutrients seem most available at 7, am I wrong? I usually ph around 6.6-6.8. I'm gonna try doing...  more

    • Krueger
      Krueger
      16 points -
      April 30

      It is a possibility. It has crossed my mind. As I'm looking at all now and it's very confusing. And also I keep getting manganese and magnesium mixed which doesn't help haha. As I am looking at the leaves now it's manganese deficient yet it's had full foo...  more

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