A question for the growers using Jacks 5-12-26 - Page 95 - Nutrients and Fertilizers - International Cannagraphic Magazine Forums

MrBungle · 02-09-2018, 07:18 PM

is anyone actually checking their media pH?

and I don't mean adjusting your nutrient solution pH, with pH down

beta · 02-09-2018, 08:14 PM

Quote:

Originally Posted by Rabbi

Yes I am using RO water. ... The cal/mag is definitely looking like the missing key that was needed.

That would explain it! I don't need cal/mag, but I use tap water.

Glad you got it figured out!

Rabbi · 02-10-2018, 12:50 AM

Quote:

Originally Posted by Hookah79

You’re going to need the nitrogen from the calnit in veg for sure.You’re not going to get enough of it in jacks only.

I'm talking about using the 5-12-26 and the cal/mag instead of the cal/nit. I now know first hand that I for sure don't get enough nitrogen from the 5-12-26 and Jacks cal/nit(even in flower).

Michael_Phelps · 02-10-2018, 01:06 AM

Using jacks hydro without the calci-nit will surely lead to imbalances and deficienses/lock-outs. Just stick with the 3 parts jacks to 2 parts calci-nit and then add in cal-mag. I would start low like 0.5 ml per gallon of nutes and go from there.

Cal/mag will not replace the calci-nit.

WaxyTaxi · 02-10-2018, 04:22 AM

you deff need the calnit, dont drop it

Trich_Tyson · 02-10-2018, 09:07 AM

My thing is.. cal mag IS cal/nit. Plus epsom. and lots of water.

Unlikely you are hitting the same N, Ca numbers with just calmag, but increasing Mg. If it works it works I suppose..

My maths, based on the above, would probably just show ya need to supplement jacks/calnit with epsom in ur case.
I know you tried, but just look at the numbers brotha..

Rabbi · 02-10-2018, 01:22 PM

Quote:

Originally Posted by Trich_Tyson

My thing is.. cal mag IS cal/nit. Plus epsom. and lots of water.

Unlikely you are hitting the same N, Ca numbers with just calmag, but increasing Mg. If it works it works I suppose..

My maths, based on the above, would probably just show ya need to supplement jacks/calnit with epsom in ur case.
I know you tried, but just look at the numbers brotha..

I totally hear ya man but the results of my plants are showing otherwise in my case. Maybe later on down the road I'll do a side by side and show you guys first hand. Calnit(even at a 1:1 ratio) + Epsom ='s yellow plants for me, for some reason.

Rabbi · 02-10-2018, 01:25 PM

Quote:

Originally Posted by Michael_Phelps

Using jacks hydro without the calci-nit will surely lead to imbalances and deficienses/lock-outs. Just stick with the 3 parts jacks to 2 parts calci-nit and then add in cal-mag. I would start low like 0.5 ml per gallon of nutes and go from there.

Cal/mag will not replace the calci-nit.

Quote:

Originally Posted by WaxyTaxi

you deff need the calnit, dont drop it

Alright, shall do than. Thx guys.

samiam · 02-10-2018, 03:29 PM

I wish there was a form of low N calcium nitrate for flower.
this last run my buds did much better with the Calcium biomin vs lowering the Calcium nitrate. Had much less mold. It just has a bad smell.

Big_Al's_Buds · 02-10-2018, 05:57 PM

Quote:

Originally Posted by Rabbi

Yes I am using RO water. I was told that I shouldn't need cal/mag though with Jacks and the cal/nit(even with the R/O water). However that is turning out to not be the case. The cal/mag is definitely looking like the missing key that was needed.

Th RO water is your issue.. if not mentioned already.. I went through the same struggle as you.. Mag def in promix.. my run off would always be 5.4ish.. even going in at 6.5 it would be low

Issue is RO has no ph.. When just adding jacks it doesnt stabilize properly. My RO makes my 500ppm well water about 20ppm in the storage tank. On the advice of an long time grower I started adding my well water back to bring it to 100ppm before adding my jacks..

Solved everything. It stabilizes PH so no more crashes with in the media.

You dont need CalMag, Jacks has more then enough of both. Its your PH of the RO that is messing you up.

02-10-2018, 01:06 AM	#944
Michael_Phelps Newbie Join Date: Aug 2016 Posts: 9	Using jacks hydro without the calci-nit will surely lead to imbalances and deficienses/lock-outs. Just stick with the 3 parts jacks to 2 parts calci-nit and then add in cal-mag. I would start low like 0.5 ml per gallon of nutes and go from there. Cal/mag will not replace the calci-nit.
	Quote 2 members found this post helpful.

02-10-2018, 04:22 AM	#945
WaxyTaxi Psychonaut Join Date: Dec 2014 Location: Axis Mundi Posts: 2,846	you deff need the calnit, dont drop it
	Quote 2 members found this post helpful.

02-10-2018, 09:07 AM	#946
Trich_Tyson Senior Member Join Date: Sep 2015 Posts: 1,042	My thing is.. cal mag IS cal/nit. Plus epsom. and lots of water. Unlikely you are hitting the same N, Ca numbers with just calmag, but increasing Mg. If it works it works I suppose.. My maths, based on the above, would probably just show ya need to supplement jacks/calnit with epsom in ur case. I know you tried, but just look at the numbers brotha.. __________________ IG: @trich_tyson My Current Thread
	Quote 2 members found this post helpful.

02-09-2018, 07:18 PM	#941
MrBungle Senior Member Join Date: Aug 2015 Posts: 1,113	is anyone actually checking their media pH? and I don't mean adjusting your nutrient solution pH, with pH down
	Quote

02-10-2018, 03:29 PM	#949
samiam Member Join Date: Jan 2017 Location: colorado Posts: 198	I wish there was a form of low N calcium nitrate for flower. this last run my buds did much better with the Calcium biomin vs lowering the Calcium nitrate. Had much less mold. It just has a bad smell.
	Quote