magnesium deficiency

  1. M

    how to fix magnesium / potassium deficiency on autoflowering plants?

    This is my first grow, still learning a lot but thought i'd come here for help from more expirienced growers. any and all help greatly appreciated. As far as plant info goes, the two plants in the back of the tent are thc bomb autos from MSNL and the front one is a white widow auto also from...
  2. L

    Deficiency in the plant need help

    Hello guys this is my first grow I am growing in coco and feeding half the recommended dose it is day 27. I suspect it is magnesium deficiency can anyone help me it would be much appreciated what do you guys think is the problem and what can I do to fix it I am very worried and scared I was due...
  3. H

    Chemdawg - deficiency question???

    Does anyone have experience growing chemdawg? And if so what are the nutrient requirements bc I can not seem for the life of me to get rid of either a calcium/magnesium deficiency or a phosphorous deficiency? And how heavy in ml/gallon should I be feeding them these particular nutes? Bc I upped...
  4. G

    RQS northern lights auto needs your help

    Sprouted: 9th nov Temp: 25-27c on 19-21 off Humidity: 40-45 on 50-60 off 20/4 ratio since yesterday it was 24/0 before Lights: 150watts since yesterday was 220 before. Mixed bulbs Fabric pot: 18 liters Lights hanging lenght: 40cm I use coco mixed with perlite 80/20 Fertilizer: in first 8 days i...
  5. C

    Possibly a Cal mag def.

    Hi so I am in the begining of week 6 of Veg and was planning on flipping my girls to flower in 6 days. I just noticed these brown or looks like purplish spot in some of the bottom leaves and a few of the top leaves. I’ve done some research and I think it’s a calcium magnesium deficency. Can...
  6. P

    Plant turning black?

    Im about 1-2 weeks from harvest and one whole side of my plant is turning black?! Im hydro so I've just emptied and refilled my tank, thinking mag deficiency so I've put in some calmag, am i right? Its only one complete side of the plant, hopefully you can see from the photos?
  7. G

    Help please! Images attached

    I started off With happy frog in red solo cups and had to be away for a week or 2 so they stayed in them for too long. I transferred into 5 gal recently using Big Rootz soil. Considered a super soil they said at the hydro store. They recommended using BioCanna Rhizotonic and BioCanna Vega.. I...
  8. Miitch420

    Rust on newer fan leaves. PH is normal COCO

    Can anyone help identify this problem. sitting in a 1gallon pretty root bound. I feed it once a day until runoff, I usually just sprinkle some a-b veg flakes on the top of the soil and take the water from my flowering nute res. Any suggestions on what’s happening
  9. B

    Help, leaf burn, don't know the cause

    Hey guys, I've been vegging this bagseed sativa dominant lady for 9 weeks, flipped to flowering about 5 days ago. Micro grow(first) with CFL: Veg: 3 x 23W 6500K = 69W Flowering: 4 x 23W 2700K + 1 x 23W 6500K = 115W LST, topped once + lights close to the plant. She grew short due to the weak...
  10. Armyofsprout

    MG Deficiency?

    Im thinking that i have Mg deficiency in my young plants but im not sure. I have cal mag but i dont use it because i just put dolomite in my soil when I transplant which provides that for weeks. I usually do 1tbps per gallon of soil. At first i thought that maybhave been too much dolomite but...
  11. S

    Heat stress or potassium? Edge burn and slow growth.

    1st grow and its already getting a little complicated lol. Im getting some strange edge burn along the serrated edges on two of the top leaves. purple stems and slight blotchy pigmentation is also going on in the lower older 3 finger leaves (although very small amount and can be somewhat seen...
  12. E

    Yellowing on the leaves, what kind of deficiency is it?

    Hello guys I’m growing in coco+perlite, I’m in day 18 of flower and I have 3 or 4 leaves that have turned yellowish as you’ll see in the picture below. is this a magnesium deficiency or something else?
  13. PlantMama

    Magnesium deficiency?

    Hi everyone, this is my first grow and I'm so upset with myself for not catching this sooner. Almost positive I have a magnesium deficiency and despite my best efforts, nothing has worked (flushing, giving cal mag). At this point, the one on the bottom right is ready to harvest (I think) and the...
  14. S

    Need help diagnosing

    I have a few plants that I am concerned about. 1 - Out of 4, one seems to be just fine...so far.... 2 - One of them has twisting leaves and skinny leaves where there is new growth, which might just be normal for this plant, not sure. 3&4 - The other two have similar issues, they both have...
  15. lordprettyflacko

    Overall health and water runoff

    Hey guys, I have a couple of questions regarding my first grow. It’s an Amnesia Auto in its 3rd week of life. I’m using a 13L pot with super soil and 200W of LED lights on a 21/3 schedule. I already made a bunch of research and would like to get some more insight from you. Today I noticed...
  16. P

    Can I add magnesium tablet to my water?

    Hi! Im wondering if I can add magnesium from the pharmacy to add to my water since my calmag is late and it will still take atleast a week! Thx for the help
  17. P

    Can I add magnesium tablet to my water?

    Hi! I ordered a calmag a few days ago but its gona be really late and my plants need magnesium! Can I add pure magnesium tabletbto my water? And how many mg?
  18. P

    Can I add magnesium tablets to my water?

    Hi! I though maybe make it into a powder and add to my water since my calmag is empty and the new one is late I thiught I can do something like that! The deficiency is getting worse so I need to do something
  19. B

    Transplanted in FFOF soil, and now i think my plants are suffering from Mg2+ deficiency?

    Can someone please confirm what is happening to these leaves. I transplanted my plants in FFOF soil a week ago, and my leaves at the bottom started turning yellow with brown crisp tips and the stems are purple. All week they have been going through stages where they droop and then perk up but...
  20. Igrow420365

    First time grower

    Hey what’s up guys, I’m new on here and wanted to share my journey with you guys. I decided to join and learn more about other growers journey which could potentially help me along the way. This is my first grow and let’s just say it’s been a hell of a ride. At first I was dealing with calcium &...
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