Yellowing leaves tips?
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Disc0
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Help me the newb to coco please
Hi - hard to say with no info about your setup, nutes etc but yellow tips is often the first sign of nute burn
Next watering, water to runoff with a weak mix, or just 6.3 - 6.5 pH water
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Disc0
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Hi there my pH is around 5.8 and nutes only running at 850ppm with my source water around 350 I recently had a calcium deficiency just stumped as it's only 3 out of the 5
What nutes are you using? Do you CalMag fairly regularly?
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- #6
Disc0
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Calmag regular and canna coco ,,, driving me up wall
Not surprised, it would me too
OK so it's not nutes related - have you calibrated pH/EC pen recently?
Are you certain the roots are in good shape?
Clutching at straws here
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Disc0
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Calibration 2 weeks ago and been using cannazym got me really stumped will flush out tomorrow and see what that brings to the table fingers crossed
@Disc0 - how's it going? Any results after flushing? I'm intrigued
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Disc0
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Seems to have slowed I think I've nailed the issue ,,,my vitalink pebbles as the others don't have and they are fine even though I buffered them ???
Sounds about right - at least you can adjust accordingly now you've sussed it 
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Disc0
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Yes m8 fingers crossedSounds about right - at least you can adjust accordingly now you've sussed it
Hello @Disc0 hope you are well my friend.
Great garden you have going.
My method in coco is to feed them every day.
I always keep the coco wet.
And water until I get run off.
Nutrients are always ph. 5.8 exactly.
I always use calmag.
I Put it in my Nutrient water first then my Nutrients.
By second week of flower I drop my nitrogen down.
Depending upon strain my ppm's going into flower could be 700 to 900 ppm.
Then tword the end of flower i drop it down.
I use a few things that might be helpful to you.
If you look in my clone thread I list them.
Bill
Hey @Bill284 - a slightly higher pH flush can boost NPK, Cal, Mag and Sulfur & Molybdenum uptake
The lower end is ideal for Copper, Zinc, Boron, Manganese & Iron
You're gonna be bringing the pH down again with nutes so it does no harm in my humble experience, but then I tend to do micro-grows/sog so perhaps it's not the same on a larger scale
Had a pH/EC pen once - got rid cos I never used it!
*disclaimer* Needless to say I bow to your greater expertise my friend
The lower end is ideal for Copper, Zinc, Boron, Manganese & Iron
You're gonna be bringing the pH down again with nutes so it does no harm in my humble experience, but then I tend to do micro-grows/sog so perhaps it's not the same on a larger scale
Had a pH/EC pen once - got rid cos I never used it!
*disclaimer* Needless to say I bow to your greater expertise my friend
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- #16
Disc0
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Thank you Bill been a few years since doing this ,my problems I believe was my clay pebbles I'm sure of it (calcium Deficiency) which I got over then to this tip yellowing but only the ones with the pebbles even tho I buffered the stones and calmag them it's had me stumped:
Was only running at 700ppm with my source water being around 375ppm
Been confused
Kind regards David
Don't fret about the burnt tips.
No harm done.
375 ppm to start can cause a issue. Do you have a better source of water.
By the time you put nutrients in you'll be well over a 1000.
Bill
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Disc0
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Looking to get RO ,I'm keeping the feed below 1000ppm which may mean they not getting a good feed but they are auto's so keeping fingers crossed bro
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- #19
Disc0
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I send some pics later
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Disc0
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There they are
