{{{ Magnesium Deficiency won’t go away }}} *Pics

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silvermt

Well-Known Member

• Sep 8, 2019

• #1

howdy RIU:

Can you guys confirm that what I’m seeing looks like a mag deficiency?

I feed them 2.5 grams per gallon of Magnesium sulfate and I haven’t been able to cure this deficiency in two weeks

I’m 8 days in flower
growing in coco
feeding 750-850 ppm ec of 1.6.1.9
PH 6.0

Run-off is always very relative to what I’m putting in.


Please help me out

 

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myke

Well-Known Member

• Sep 8, 2019

• #2

locked out,flush, calmag,food.
your missing Ca,too much Mg will lock it all up.

 

Jypsy Dog

Well-Known Member

• Sep 8, 2019

• #3

Check this guy out... You'll be fixed and educated!
https://www.cocoforcannabis.com/

 

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silvermt

Well-Known Member

• Sep 8, 2019

• #4

myke said:

locked out,flush, calmag,food.
your missing Ca,too much Mg will lock it all up.

Click to expand...

I’m also adding to grams of cal-nitrate per gallon

 

myke

Well-Known Member

• Sep 8, 2019

• #5

This is more then one plant showing these signs?

 

myke

Well-Known Member

• Sep 8, 2019

• #6

Jypsy Dog said:

Check this guy out... You'll be fixed and educated!
https://www.cocoforcannabis.com/

Click to expand...

I did a quick read,seams to like using the full GH line up.Do you use them?Was thinking of trying something else.

 

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silvermt

Well-Known Member

• Sep 8, 2019

• #7

I use to do Lucas formula 4-7 grams of Maxibloom 1 tsp of silica and 1 tsp of calimagic ph’d and was killing it.

Then I moved places and my garden went to shut so I quit the maxi regimen and went to this:

1 tsp or Silica
2-2.6 grams of magnesium sulfate
2 grams of calcium-nitrate

Ph 6.0

Here is my water test:


https://simplewaterdata.com/report/view/7e990b51ad90fd5ff339c701af4e64de2914c191

 

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silvermt

Well-Known Member

• Sep 8, 2019

• #8

silvermt said:

I use to do Lucas formula 4-7 grams of Maxibloom 1 tsp of silica and 1 tsp of calimagic ph’d and was killing it.

Then I moved places and my garden went to shut so I quit the maxi regimen and went to this:

1 tsp or Silica
2-2.6 grams of magnesium sulfate
2 grams of calcium-nitrate

Ph 6.0

Here is my water test:


https://simplewaterdata.com/report/view/7e990b51ad90fd5ff339c701af4e64de2914c191

Click to expand...

 

pulpoinspace

Well-Known Member

• Sep 8, 2019

• #9

silvermt said:

1 tsp or Silica
2-2.6 grams of magnesium sulfate
2 grams of calcium-nitrate

Click to expand...

is this all you're feeding?

if so its a potassium def for sure, prob phosphorous too

potassium def can look like mag def. you need to get this plant a complete nutrient

 

pulpoinspace

Well-Known Member

• Sep 8, 2019

• #10

https://www.amazon.com/JR-Peters-77251-Fertilizer-Brown/dp/B00IGYTCGA

something like that to be added with ur cal nitrate and mag sulfate

3g of 5-12-26
2g cal nitrate
1g mag sulfate

 

myke

Well-Known Member

• Sep 8, 2019

• #11

pulpoinspace said:

is this all you're feeding?

if so its a potassium def for sure, prob phosphorous too

potassium def can look like mag def. you need to get this plant a complete nutrient

Click to expand...

It says he’s feeding at 1.6-1.9 EC. Have to assume it’s food. Wouldn’t have made it this far if all that EC was Ca and Mg.

 

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silvermt

Well-Known Member

• Sep 8, 2019

• #12

pulpoinspace said:

https://www.amazon.com/JR-Peters-77251-Fertilizer-Brown/dp/B00IGYTCGA

something like that to be added with ur cal nitrate and mag sulfate

3g of 5-12-26
2g cal nitrate
1g mag sulfate

Click to expand...

Hi Pulp,

Thanks for taking the time -

I use 6-30-30 by Growmore

 

pulpoinspace

Well-Known Member

• Sep 8, 2019

• #13

oh ok just making sure

 

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silvermt

Well-Known Member

• Sep 8, 2019

• #14

pulpoinspace said:

oh ok just making sure

Click to expand...

Yeah I’m really at a loss - I’ve got quite a few grows under me and have not been able to overcome this weird deficiency :/

 

pulpoinspace

Well-Known Member

• Sep 8, 2019

• #15

yeah i'm not sure. are you under LED lights too? i struggle with magnesium constantly in peat under LED and i'm always hearing horror stories about coco and LED. seems like some popular strains need a ton of magnesium these days.

 

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silvermt

Well-Known Member

• Sep 8, 2019

• #16

Growing under Gavitas

 

Jypsy Dog

Well-Known Member

• Sep 9, 2019

• #17

Get your coco flushed out and reset... Don't change anything until you see how it responds. Some strains are Mg Hogs, but we lock them out fucking with it. Always Reset and Observe.

 

myke

Well-Known Member

• Sep 9, 2019

• #18

Agreed some strain are just calmag hogs.
Let us know what happens. Good luck.

 

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NJDGow

New Member

• Sep 9, 2019

• #19

I had a similar issue and it ended up being root aphids. Not saying this is what is causing the issue just wanted to bring it to your attention so you can rule it out. Good luck.