Browning seedling leaves

Wiki93

Well-Known Member
Hey guys this is my second time trying to grow in coco choir and I learned slot the first time. I have 8 small ladies going and for some reason I can not figure out as of two days ago one started showing browning and drying out on the tips of the first set of leaves. I have a 75/25 mix of coco and perlite with no nutrients added yet. They are about a week old and I am stumped. A second plant started showing signs of it this morning so any help would be appreciated!
 

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JohnDee

Well-Known Member
Wiki,
There's an almost endless stream of threads about seedlings doing poorly in coco. I know one stubborn guy who killed over 30 seedlings before he switched media. I'm not exactly sure what it is...but my theory is that because of high cec, it holds onto sodium unless totally rinsed and prebuffered and even then the coco needs to be prepared. Google dying seedlings in coco to see that you aren't alone.

I say transplant to a good seed starting mix and go into coco after plant has some growth.
JD
 

Jack Harer

Well-Known Member
Thanx JohnDee, I did just that, and it seems that coco is problematic across the gardening world, not just cannabis. I never understood why folks would use it as a medium, considering all one has to do to it to make it usable. There are so many other soil substitutes that are far less hassle.
 

JohnDee

Well-Known Member
Jack,
Experienced growers with a good understanding of cation exchange and who also use coco specific nutrients get good hydro like growth. It does have possibilities but so many new growers think it'll be a snap...and end up with problems. Your little plants should survive once out of the coco...just be gentle and it's not necessary to wash all the coco off. Good luck...
JD
 

Jack Harer

Well-Known Member
Dude, those aint MY little plants!! LOL I'm just questioning the choice of coco in the presence of other equally viable choices. I know coco is used with great success, but as you say, it can be problematic with new growers!!
 

Jack Harer

Well-Known Member
LOL! I don't use much native soil here due to the abundance of low level heavy metal contamination. I can get some with really low levels way out in the forests, but not so much around the cities.
 

JohnDee

Well-Known Member
Sorry Jack...lost track of who the OP was.
Indeed it seems like coco has become the choice of many beginners...when it's not really a beginner medium.
JD
 

Wiki93

Well-Known Member
What would you suggest moving them into? Im positive on no nutes in the coco but I really want to save them!
 

Wiki93

Well-Known Member
Ok I was planing on using Cana A and B and at a really low strength I'm just confused because that one is the worst and a couple others are showing minor signs but some are doing great! All treated the exact same
 
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