HELP! Plant leaves going yellow stopped growing????

Discussion in 'General Marijuana Growing' started by Budswiser97, May 13, 2018.

  1.  
    Budswiser97

    Budswiser97 Member

    Hi, new to all this so excuse me if i've got something wrong or posted it in the wrong place! Need a hand here, my seedlings seem to have white patches over them and bottom set of leaves are drying and dying!! Have attached pics.

    Thanks!!!:???::???:
     

    Attached Files:

  2.  
    puffdatchronic

    puffdatchronic Well-Known Member

    looks burnt to me. If you fed them , big mistake seedlings don't need food for about 3 weeks in most potting mixes. baring that you may be using an extremely over ferted potting mix unsuitable for seedling growth.
     
  3.  
    Budswiser97

    Budswiser97 Member

    S#@t anyway i can fix it? Or cut my losses do you reckon?

    Cheers for the reply though appreciate it !
     
  4.  
    Beachwalker

    Beachwalker Well-Known Member

    Are you pHing your water?

    What are you growing in?

    How strong a nutrient mixture did you feed them?
     
  5.  
    Budswiser97

    Budswiser97 Member

    Fed a weak mix of 0.5 ml of food per 250ml water i think if i remember right, dutch pro, a then b, 14 pots.
    Have not ph'd my water no so i'm going to find out if theyre to acidic when my meter turns up , correct me if i'm wrong but are they supposed to be 6.5 to 7.1 or something ? For future reference.

    Hoping i can save these pups before its too late....
    thanks again!!

    Quick edit, they're in standard soil from shop so nothin special!
     
  6.  
    blake9999

    blake9999 Well-Known Member

    Seedlings that small don't need food for about three weeks. Give it PH'd water only for the next few weeks and see if it recovers.
     
  7.  
    Beachwalker

    Beachwalker Well-Known Member

    Ten to Fifteen bucks on amazon, get a cheap yellow pH meter right away, or even better get pH meter + PPM meter for about 20 bucks for best result!

    *and never feed a Seedling
     
  8.  
    Anon618

    Anon618 Well-Known Member

    One thing i have learned in this game is you need to PH your water every watering and check PH of your run off.
     
  9.  
    thenotsoesoteric

    thenotsoesoteric Well-Known Member

    First of all, what medium are you using? Soil, coco, soilless mix? And is it amended soil i.e. does it have fertilizers added to it?

    In soil the ph will not be as big of an issue as it will in coco/soilless mixes. Also if you're in coco or a coco based mix you will need to add nutrients right away and you will need to add calmag since the coco absorbs calcium from the nutrient solutions making some unavailable to the plants.

    Are you keeping the soil moist and letting it dry out enough in between watering?

    It is hard to tell but from the pictures you have it looks like you're using a coco or spag moss type soilless mix.

    If you are in coco then you never feed with just plain water. You'll always want to have at least a ml of fertilizer and then 2-5 ml of calmag with every watering when using coco or else you'll throw your coco out of whack and you will have issues continually.

    I've never ran in a spag peat moss blend before so not sure what you'll need to do there.
     
  10.  
    Budswiser97

    Budswiser97 Member

    Check the ph of my run off? Whats the run off? sorry im new to all this jus tryna save a few quid
    And how can i neutralise my water more then so its not so harmful?
    It's soil btw
    Thankyou
     
  11.  
    blake9999

    blake9999 Well-Known Member

    Runoff is the water that leaks out of your pot when you water it.
     
  12.  
    Anon618

    Anon618 Well-Known Member

    OP, you need to do a little research on how to grow before coming here asking for help. You need to get the basics down. These plants are very tough, but are very sensitive to PH or you will get a nute lockout which will effect quantity and quality.. not to mention you need to learn how to "top" and or "FIM" your plants. Plenty of good sites to learn the basics. Most seed sellers like http://www.ilovegrowingmarijuana.com offer free booklets on the basics of growing.
    If your not willing to learn the basics i wouldn't waste your time trying to grow.
     
    Beachwalker likes this.
  13.  
    Budswiser97

    Budswiser97 Member

    I spent loads of time doing research of basics, just couldn't find specifics, infact i thought you only got lockouts on coco tbh!

    I think i'll look more into the ph side of things because seems obvious to me that's where i've gone wrong, only thing that got me was that the stems all look perfectly fine and healthy!

    But just a quick one, if my water is too acidic how do i go about lowering the ph? Or is that something im better off reading about?

    Thanks for everyones help though once again! Think i'll try again and if i can't get it right maybe it's just not for me!

    Cheers!
     
  14.  
    puffdatchronic

    puffdatchronic Well-Known Member

    while ph is very important in hydrophonics and coco, it is less important with soil grows. The soil acts as a ph buffer to a good degree (meaning the soil will change the ph of the water going in to its own value) and while it can be benificial to keep it in check, it's not really necessary. Do gardeners ph their water for all the plants and crops they grow? lol hell no, and this is a resilient weed we are growing here. Your seedlings look quite burnt but give them a good water with plain water and leave them to dry out for a few days, they might recover.
     
  15.  
    Beachwalker

    Beachwalker Well-Known Member

    If your soil is acidic you want to raise the pH, not lower it (you need to read more like the poster above suggested) you would raise the pH with either baking soda or a commercial pH-up product

    ..don't give up, just read more and believe me we've all killed off plants some of us including myself whole Gardens! ..it just takes a little like everything else that's all
    -good luck!
     
  16.  
    Budswiser97

    Budswiser97 Member

    Great got myself a tester today and read 6.6 so i'm going to look into bringing it down a tad, thanks for all the info ! Once again much appreciated!
     
  17.  
    Anon618

    Anon618 Well-Known Member

    make sure to always calibrate your tester. they tend to fall off from time to time. 6.6 is fine imo. Most nutrients like > 6.5 like Ca so 6.6 right on target.
     
  18.  
    Budswiser97

    Budswiser97 Member

    Oh god okay, cheers man, dont know whats happening but popped em out of their tent and on windowsill still warm good lighting and they seem to have carried on growing now ? I did change their soil before because i suspected the ph high or low or some sort of lack of nutrients.
     
  19.  
    Anon618

    Anon618 Well-Known Member

    Im into my 3rd grow and one thing for certain, if your growing in soil you need to balance your soils PH. After checking runoff when a plant wasnt doing well, i found that my runoff ph was near 5. Since then i have added dolomite lime to my soil and since then grows have been perfect.

    Once you get your soil dialed in, PH your water to around 6.6 your plants will blow up.

    This is my 3rd grow off of a clone. week2 of flower.
     

    Attached Files:

    Beachwalker likes this.
  20.  
    Budswiser97

    Budswiser97 Member

    Just a tiny update, they are doing alot better now! Although some leaves seem a bit clustered im hoping it will sort itself and i wont have to result to pruning, i forgot to mention they are autos....
     
    Anon618 likes this.

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