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Every day now , whats wrong with these guys? yellow edges to leaves , green vains? Rate Topic: -----

#1 _bobbert_

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Posted 27 April 2012 - 09:22 PM

Any ideas guys?

3ml growers ark per litre, coco , 3 litre pots , due a pot up.
Growth is good, roots have come along a lot since my last disaster.
ph around 5.9 - 6.
temps good.

edit - still in veg period. Hand watering although I did submerge the pots in a bucket last night.

This post has been edited by bobbert: 27 April 2012 - 09:23 PM

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#2 User is offline   Superbudding 

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Posted 27 April 2012 - 09:45 PM

Looks like mag deficiency to me. personally I would add some epsom salts to the next feed and see if it improves. Green veins and yellow leaves is mag def, yellow leaves and veins is N deficiency is what I was told + coco loves Mag and cal!
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#3 _bobbert_

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Posted 27 April 2012 - 10:39 PM

Where can I buy calmag? Ive been reading up and people recommend it , or will epsomsalts give me both cal and mag?
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#4 User is online   groovelick 

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Posted 27 April 2012 - 11:28 PM

Epsom salts will give you the mag but there is no calcium in it.
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#5 User is offline   bizzaro 

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Posted 27 April 2012 - 11:45 PM

what ec??
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#6 _bobbert_

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Posted 28 April 2012 - 12:27 AM

No idea what ec it is at i'm afraid.
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#7 _bobbert_

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Posted 28 April 2012 - 11:24 AM

Purchased some epsom salts today , how do I use them?
Do I mix it in with a full strength or weaker feed? Also how much?
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#8 User is offline   iky 

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Posted 28 April 2012 - 11:33 AM

disolve 70g in 9ltrs water AND SPRAY DIRECTLY ON TO PLANTS

SOrry was shouting :spliff:
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#9 _bobbert_

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Posted 28 April 2012 - 11:44 AM

Can I not add it to their feed then?
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#10 User is offline   Frank Lopez 

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Posted 28 April 2012 - 12:00 PM

View Postbobbert, on 28 April 2012 - 11:44 AM, said:

Can I not add it to their feed then?


You gottta check the content on your regular feed and see how much more might be required.

What nutes are you using??

Do you have hard water / soft water / RO water?

You could just suck it and see. experiment by adding a gram or 2 per gallon of feed.
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#11 _bobbert_

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Posted 28 April 2012 - 01:18 PM

I am using growers ark 3ltr per litre of water ,very hard water area.
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#12 User is offline   Frank Lopez 

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Posted 28 April 2012 - 01:45 PM

Strange one.

I assume your an accomplished grower so all the basics will have been checked.

Have you ever had Mag issues before? I have fairly hard water and never had cal/mag issues.

First time on these nutes?
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#13 _bobbert_

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Posted 28 April 2012 - 01:55 PM

First time in coco , apparently it is a common thing with coco.
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#14 User is offline   Frank Lopez 

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Posted 28 April 2012 - 02:02 PM

I'm venturing into coco myself at the moment, week 4 flower now.

I was initially keeping Ph at 6-6.2 but was showing some N defficiency at around week 4 veg.

On another forum Green Ninja told me to do drop it to 5.5-5.7 in veg and they coloured up and look very healthy now.

I did this even though the PM+ chart says 5.8-6.0

I use drippers and a wilma big4. I think the ideal PH range for coco stays the same whether your passive or active.

It may not be just N being locked out (as i'm sure your aware, re PH flucts), but i'm sure the correct PH range will help ballance the mixture.
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#15 User is online   Viva 

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Posted 28 April 2012 - 02:08 PM

N is uptaking better at a lower ec ie around 5.6-5.8, does look like mag def tho from the pics a heaped tablespoon to10 litres water is ideal. :yinyang:
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