Roger A. Shrubber
Well-Known Member
if it's doing something different now, post new pics....
It's only getting worse
- Thread starter CrémeDeLaCréme
- Start date
My 2 cents...is, and you say clawing down now..is you're overfeeding...and that issue in the pics is either iron lacking..which usually should be present, or sulfur, which is not always present and leeched easily. I see some skinny new growth, which can mean too much p or k..which would lock iron out. You say clawing down now..which would mean too much nitrogen, and that would compete with sulfur's uptake.
unknown member
Active Member
I don't grow in coco but I hear it kind of holds on to mag / calcium and is prone to build up if you don't use propernutrients designed for coco or something like that..
CrémeDeLaCréme
Well-Known Member
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CrémeDeLaCréme
Well-Known Member
Dam it was only one problem but now it's as if I'm getting multiple. If I lower the Ph with just the Cal/Mag I'll receive today with no Nitro should I be good? I'm thinking since the Ph been 6-6.5, where it's not at the correct range. Therefore it's locking out numerous things which has led me to these current issues I have. One thing always leads to another FML
Roger A. Shrubber
Well-Known Member
i would say low rh and too much N, leafs reverse tacoing like that is usually from overfeeding, even though they don't look overfed otherwise
CrémeDeLaCréme
Well-Known Member
Roger that boss, Thank You very much for your help. Is there any way to get the cupping leaves back to normal or has the damage been done and to only worry of the new growth?
shrxhky420
Well-Known Member
If you don't grow in coco why would you offer up advice on something you know nothing about?
Coco is inert. It holds on to nothing, that's why you feed with each watering. Coco does have a tendency to build up salts locking the plant up. That's why it's good to flush coco.
Cal/mag is a staple in my feeding regimen.
SH420
Bernie420
Well-Known Member
Right I dont see much to act on either the new growth is normal the cupping leaves could just be gravity
You dont have a sulfer or iron problem.
Your ph isn't that far off to be causing you issues, if it was, then you'd see other problems as well. Not to mention, that cal-mag will not bring your ph down, it's not an acid, if anything it will bring it up from the calcium-carbonate in it. Coco is not completely inert, it does hold onto ions, namely calcium and magnesium...hence why you need to buffer it prior, because if you don't, those ions will be filled with sodium and potassium..those must be removed from the exchange sites and that's done by washing the coco (get rid of sodium) buffering with a cal-mag product prior to using (to cover the exchange sites with calcium and magnesium). You have too much nitrogen for one, and likely too much p and/or k which is causing issues with your micros, namely iron and possibly zinc as well. Yes, keep your ph lower, but more importantly, you have to dial in the feed better...i think you have a bit of an excess causing some lockout of heavier metals.
That's wrong advice as well....coco is not completely inert..if it was then how would it have a tendency to 'build up' salts? Coco does have cec sites, but the bond to cations is not as strong as in mineral soil, but nevertheless, it does hang on to nutes...which is exactly why it has to be buffered...that's what's being buffered..the cec sites!
Edit for OP: Added this site in, maybe it can help you in the right direction....https://cocoforcannabis.com/needcalmag/
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shrxhky420
Well-Known Member
Always learning. Just breezed through it really quick but I see what you're referring to. I'll take a deeper read a little later. Thanks.
SH420
CrémeDeLaCréme
Well-Known Member
I know where I've screwed up urghhhh... I should've mentioned this is my first coco grow
I didn't rinse it or buffer it
Lesson learned. I literally just youtube'd "how to buffer coco coir" and the doctor's video with that link popped up lol I've subbed to his channel and will follow his method from here on out. Thank you so much for the wise knowledge and help.
Roger A. Shrubber
Well-Known Member
buffering isn't essential, but you will burn through a lot of cal mag without it. rinsing depends on the quality of the coco to begin with.
most places pile the coconut husks up on the beach where the trees grow, and the salt water washes over it till they come back and collect it. if they don't wash it out good before they process it, you can get a lot of sodium build up in it. i've bought cheap coco and found salt crystals the size of the tip of my pinky in it. quite a few of them....it's better to be safe than sorry, so even if you buy good quality coco, i'd give it a light rinse and charge, just to make myself feel better, if no other reason.
most places pile the coconut husks up on the beach where the trees grow, and the salt water washes over it till they come back and collect it. if they don't wash it out good before they process it, you can get a lot of sodium build up in it. i've bought cheap coco and found salt crystals the size of the tip of my pinky in it. quite a few of them....it's better to be safe than sorry, so even if you buy good quality coco, i'd give it a light rinse and charge, just to make myself feel better, if no other reason.
CrémeDeLaCréme
Well-Known Member
I just wish i only knew before i began using coco coir, lesson learned seriously. I'll do my homework. I checked on the girl and noticing it's problem is getting worse. I've found brownish/black growth tips
will this damage go away or is the damage permanent?Attachments
SPLFreak808
Well-Known Member
First set of pics "looks" like the start of iron def,sometimes iron doesnt move fast enough for some strains, If it didn't correct itself you might be looking at a def/lockout issue.
last set of pics "looks" like zinc def or possibly bugs. A true zinc def can sometimes wither your flowers just like that, something to consider.
Excess zinc can fuck with iron & excess iron can fuck with p & k.
Excess p and/or k can fuck with zinc,iron,mag & cal.
Everything needs to stay balanced
last set of pics "looks" like zinc def or possibly bugs. A true zinc def can sometimes wither your flowers just like that, something to consider.
Excess zinc can fuck with iron & excess iron can fuck with p & k.
Excess p and/or k can fuck with zinc,iron,mag & cal.
Everything needs to stay balanced
Roger A. Shrubber
Well-Known Member
you might have dirty coco. i would give it a good flushing, with ph'ed water at 100 ppm nutes, even though you're flushing it. i'd put at least a gallon per gallon of pot size through it, then let it sit for a day or two before you resume daily watering. i like to feed lightly every watering, with a decent amount of run off every third time. then start at 150-200 ppm of ph'ed nutes and work up from there.
so many theories right now, a reset and fresh start couldn't hurt. one of the good things about coco
so many theories right now, a reset and fresh start couldn't hurt. one of the good things about coco
Coco is very forgiving
Your problem is resulting from your pH being way off for coco as @shrxhky420 told you. Now flush like @Roger A. Shrubber told you and start feeding with a pH that shrx told you and you will be good to go. How do I know? I grow solely in coco and I've had your problem when I've allowed the pH in my reservoir to drift up.I just wish i only knew before i began using coco coir, lesson learned seriously. I'll do my homework. I checked on the girl and noticing it's problem is getting worse. I've found brownish/black growth tips
Can you explain why some manufacturers use a buffering process on their coco? They say it is to replace sodium and potassium ions with calcium and magnesium ions so that the coco will not steal those nutrients later. To me that suggests coco is not inert.