Help !! Mag or cal

MGM · Mar 10, 2014

Hi my temps are 26 day 21 night hum 60% growing in coco strain m39 4 week flower not sure if it cal or mag in using cal mag from the start any ideas thanks

Cort · Mar 10, 2014

Twisted leaf... how is your PH and runoff ppm/ec ?

Welshwizzard · Mar 10, 2014

The Cal Mag that I use is 2:1 Cal:Mag so I need a little Epsom Salts to keep things sweet.

MGM · Mar 10, 2014

Run of ph is 5.9 to 6 I feed at 6.1 my ec is 1.8

MGM · Mar 10, 2014

Ya same here Reyes Epsom but does not seem to be working

MGM · Mar 10, 2014

Tried*

Welshwizzard · Mar 10, 2014

Need one of the more seasoned coco growers to chime in...

Seamaiden · Mar 11, 2014

Welshwizzard said:
The Cal Mag that I use is 2:1 Cal:Mag so I need a little Epsom Salts to keep things sweet.

MGM said:
Hi my temps are 26 day 21 night hum 60% growing in coco strain m39 4 week flower not sure if it cal or mag in using cal mag from the start any ideas thanks

No. 2:1 Ca:Mg is a dismal ratio. What I see in the pix is an advancing calcium deficiency, adding more Cal-Mag to it will only make it worse.

Calcium deficiency, advanced and advancing. Epsom salt is MgSO4. There's not a single atom of Ca in it.

MGM said:
Run of ph is 5.9 to 6 I feed at 6.1 my ec is 1.8

Stop keeping the pH pegged up there. Let it range from 5.8-6.2. Get some calcium into those girls. You will not reverse the problem, the best you can hope for here is stopping progression. Get the Ca:Mg ratio more along the lines of 4:1 (which is still painfully low) to 6:1, and a higher ratio of Ca:Mg is going to be better here. Take care of the Ca form, EG don't drop a bunch of dolomite lime on it, because that's not only a bound form of calcium, but it's a bound form of magnesium. If it's CaCO3 then use a liquid product that's gotten the CaCO3 into solution. If it's a CaNO3 product, then adjust the nitrogen you're feeding.

Next time, charge the coir properly and feed sufficient Ca from the get-go or you're going to be chasing your tail trying to correct a problem that will never resolve once it's gotten to this point.

MGM · Mar 11, 2014

Sounds good thanks for the help

Prime C · Mar 11, 2014

Yeah bring the ph down a bit. Another thing I see is your sitting on concrete. If its cold where your at your root zone could be cold and that will cause a lock out also. 70 degrees is ideal. Give them a 1/4 strength flush and warm them up.;)

Lowman · Mar 11, 2014

Seamaiden said:
No. 2:1 Ca:Mg is a dismal ratio. What I see in the pix is an advancing calcium deficiency, adding more Cal-Mag to it will only make it worse.

Calcium deficiency, advanced and advancing. Epsom salt is MgSO4. There's not a single atom of Ca in it.

Stop keeping the pH pegged up there. Let it range from 5.8-6.2. Get some calcium into those girls. You will not reverse the problem, the best you can hope for here is stopping progression. Get the Ca:Mg ratio more along the lines of 4:1 (which is still painfully low) to 6:1, and a higher ratio of Ca:Mg is going to be better here. Take care of the Ca form, EG don't drop a bunch of dolomite lime on it, because that's not only a bound form of calcium, but it's a bound form of magnesium. If it's CaCO3 then use a liquid product that's gotten the CaCO3 into solution. If it's a CaNO3 product, then adjust the nitrogen you're feeding.

Next time, charge the coir properly and feed sufficient Ca from the get-go or you're going to be chasing your tail trying to correct a problem that will never resolve once it's gotten to this point.

Any suggestions on a good Cal product for coco growers. I use a cal/mag product once in awhile...but not a lot. I use tap water which I think helps. I have had these issues in the past though. I actually add more mag as I grow, and I still don't get the cal issue.

Coir · Mar 12, 2014

Lowman said:
Any suggestions on a good Cal product for coco growers. I use a cal/mag product once in awhile...but not a lot. I use tap water which I think helps. I have had these issues in the past though. I actually add more mag as I grow, and I still don't get the cal issue.

Calcium Nitrate is all you need.

Seamaiden · Mar 12, 2014

My doc has me take CaNO3 because I take Rx GERD meds. Any form (dry/liquid)?

Lowman said:
Any suggestions on a good Cal product for coco growers. I use a cal/mag product once in awhile...but not a lot. I use tap water which I think helps. I have had these issues in the past though. I actually add more mag as I grow, and I still don't get the cal issue.

Bio-Link Organic 6% Ca. LOVE that stuff.

Coir · Mar 12, 2014

Seamaiden said:
My doc has me take CaNO3 because I take Rx GERD meds. Any form (dry/liquid)?

Bio-Link Organic 6% Ca. LOVE that stuff.

Were you able to source some finally?

Seamaiden · Mar 12, 2014

Not in state, but via Arbico.

Lowman · Mar 13, 2014

Coir said:
Calcium Nitrate is all you need.

I have some of Jacks Calcium nitrate....but it sure has alot of N in it. I am looking at a new product from Grow more right now.

Coir · Mar 13, 2014

Lowman said:
I have some of Jacks Calcium nitrate....but it sure has alot of N in it. I am looking at a new product from Grow more right now.

It's all relative. Depending on what else you are suing for nutrients, the Calcium nitrate on it's own is just about right at blooming and you can use it with other nutrients that have a small amount of N during veg phase.

Help !! Mag or cal

MGM

Cort

Welshwizzard

MGM

MGM

MGM

Welshwizzard

Seamaiden

Living dead girl

MGM

Prime C

Defender of Dank

Lowman

Coir

Seamaiden

Living dead girl

Coir

Seamaiden

Living dead girl

Lowman

Coir

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