Cal/Mag Deficiency? Or something else?

cryptique

cryptique

Member
Hi It's week three in my flowering room. And as you can see in the attached images leafs started to yellowing from the bottom then fall of some lower branches are affected too.

I am using soil (Plagron bat mix) in smart pods (fabric ones)
Plants have gone two months of veg with by only using 1-3 rested tap water (ph 7)
then they seemed to finish the mixed bat fertilizer mixed in the soil and started to show some deficiencies then started to give them AN Conniseur Grow A+B with half a dose of the recommendded. They Thrived again and i changed the light cycle to 12/12 for them to flower.

Started giving them AN Conniseur Bloom and other grand master grow nutes set like rhio skin, bud ignitor, microbes and etch half a dose for firs week then a little more at the second.
But by that time plants started to wither away from botto leaves. the new growths are healty bud development seems to be in progress but like i said lower leaves and the braches started to affect.

Any way i have sixty of them. last week i gave them all 2ml/lt an cal/mag mixed water with ph 7 flushed them with it. problem seemed to slow down just a little.

and last night as they are in week three now i gave them good wash of full dose Advanced Nutrients set of fertilizer they seem ok for probably gonna give other forty the same mix tonight or tomorrow.

So what should i do? i havent used too much fertilizer just for 4 weeks but can it be the excess salts? (oh do remember that i use fabric pods so excess water runs down). do i need a flush with clean water. Or do i need to use something less or something more? Like continuing using the cal mag support for the next week.
Soil ph seems to be constant at 7 when i checked with a stick. room temps is 28-30 celcius at day and 15-18 at night. humidiy levels are %40/%60. they are under 2000w hid lights with 1300 in the middle and 3 250w surrounding them.

See The attached pics :
IMG_5549.JPG IMG_5553.JPG IMG_5552.JPG IMG_5551.JPG IMG_5550.JPG
Thanks
 
thumper60

thumper60

Well-Known Member
cryptique said:
Hi It's week three in my flowering room. And as you can see in the attached images leafs started to yellowing from the bottom then fall of some lower branches are affected too.

I am using soil (Plagron bat mix) in smart pods (fabric ones)
Plants have gone two months of veg with by only using 1-3 rested tap water (ph 7)
then they seemed to finish the mixed bat fertilizer mixed in the soil and started to show some deficiencies then started to give them AN Conniseur Grow A+B with half a dose of the recommendded. They Thrived again and i changed the light cycle to 12/12 for them to flower.

Started giving them AN Conniseur Bloom and other grand master grow nutes set like rhio skin, bud ignitor, microbes and etch half a dose for firs week then a little more at the second.
But by that time plants started to wither away from botto leaves. the new growths are healty bud development seems to be in progress but like i said lower leaves and the braches started to affect.

Any way i have sixty of them. last week i gave them all 2ml/lt an cal/mag mixed water with ph 7 flushed them with it. problem seemed to slow down just a little.

and last night as they are in week three now i gave them good wash of full dose Advanced Nutrients set of fertilizer they seem ok for probably gonna give other forty the same mix tonight or tomorrow.

So what should i do? i havent used too much fertilizer just for 4 weeks but can it be the excess salts? (oh do remember that i use fabric pods so excess water runs down). do i need a flush with clean water. Or do i need to use something less or something more? Like continuing using the cal mag support for the next week.
Soil ph seems to be constant at 7 when i checked with a stick. room temps is 28-30 celcius at day and 15-18 at night. humidiy levels are %40/%60. they are under 2000w hid lights with 1300 in the middle and 3 250w surrounding them.

See The attached pics :
View attachment 4129908 View attachment 4129909 View attachment 4129910 View attachment 4129911 View attachment 4129912
Thanks
Click to expand...
got few things going on,how big r those pots how long they been in them why run ph at 7?need to swing that down to 6 now an then, first guess would be lock out
 
S

Srotak

Member
Thumper60 is on to something man,,, ph 7 pretty high line to ride,,, specially if yer using tap water, it has so much crap in it,,, it will buffer the acid when you try to lower the ph.
Do ya have a ppm pen ? What's the run off numbers?
To bad ya can't pop one outa the bag and check the roots,,,,
 
S

Srotak

Member
get a ppm pen man,,, if ya don't have one,,,their cheap and check water before you water,,, and check runoff,,,,
You'll be able to dial them in easy peasy man,,,,,
Becarefull flushing growing plants with raw water,,, 15 to 20% fert mix will flush away more residual salts with less flushing,,, also leaving the plant something to recover on.
I finally broke down and put in R.O. Most my problems like this dissapeared in not time.
 
tiltswitch

tiltswitch

Well-Known Member
As above. 7 is too high, locked out , that's why when you flipped you started to have issues. It should say on the bag what your soil/ soiless is phed too but it varies greatly in reality, always ph to 6.5 best range for soil,soilless.
 
cryptique

cryptique

Member
thumper60 said:
got few things going on,how big r those pots how long they been in them why run ph at 7?need to swing that down to 6 now an then, first guess would be lock out
Click to expand...
They are 8 gallons of fabric pots and the soil is plagron batmix. the thing is they were fine first six weeks when i transplant them. plagron batmix has six weeks worth of fertz in it then i started to give them advnced nutrient set in half doses and went up.

the thing is my tap water has ph at 7 but the advanced nutrients set say "ph perfect" on label i mean when i put them in bottlet water with ph8 or ph6 it nutes balance it out at 7. so i am confused cause what i knew was plants loves it better ph at 7 when in flowering guess i am wrong.

what do i do to bring the ph down. there is a ph down solution at the store should it work for me ?
 
cryptique

cryptique

Member
Srotak said:
Thumper60 is on to something man,,, ph 7 pretty high line to ride,,, specially if yer using tap water, it has so much crap in it,,, it will buffer the acid when you try to lower the ph.
Do ya have a ppm pen ? What's the run off numbers?
To bad ya can't pop one outa the bag and check the roots,,,,
Click to expand...
my tap water has constant ph7 and the advanced nutrients sat has ph perfect label on them even if i put my nutes in high or love ph water ferz back it of to 7. so i thought 7 is good for flowering : / i dont have a ph pen its kinda expensive in here and i vant afford right know maybe later but i have a stick type ph/ec/moist meter with three legs that you kinda stick in the wet soil. Ec mode shows the fert in water on screen and the arrow doesnt get past the middle which is "well".
can test the ph of a soil with pure water and one of those color chart ph test kits? i have a ph up solution already but never actually used should i buy one ph down solutions which says i can use with my ferts in water to bering the soil ph down?
 
cryptique

cryptique

Member
Indacouch said:
What soil and size pots?
Click to expand...
Soil is Plagron bat mix which has six weeks worth of food in it then you star giving nutes and i already used that six weeks and waited two more before giving nutes. at that last two week without fertz plants gave signs of photassium deficiency with yellowing from tips and sides to kill the leafs. then i started half dose of nutes which plants seem to recover. now i am week 3 of flower.

oh and the pots are 8 gallon fabric pots
 
cryptique

cryptique

Member
Srotak said:
get a ppm pen man,,, if ya don't have one,,,their cheap and check water before you water,,, and check runoff,,,,
You'll be able to dial them in easy peasy man,,,,,
Becarefull flushing growing plants with raw water,,, 15 to 20% fert mix will flush away more residual salts with less flushing,,, also leaving the plant something to recover on.
I finally broke down and put in R.O. Most my problems like this dissapeared in not time.
Click to expand...
ppm pens are kinda expensive here for me to buy right know at least : / can i try testing soil with pure warer and one of those color charted ph kits?

and ro water i here it myuch but i dont actually know what its is exacly is it some kind of filtered tap water?
 
cryptique

cryptique

Member
tiltswitch said:
As above. 7 is too high, locked out , that's why when you flipped you started to have issues. It should say on the bag what your soil/ soiless is phed too but it varies greatly in reality, always ph to 6.5 best range for soil,soilless.
Click to expand...
what can i use to bring the ph of the soil down? is there any natural substances that i can ue or should i buy one of that ph solutions
 
Bernie420

Bernie420

Well-Known Member
cryptique said:
Does epsom salt take the ph down too? i will try that but can you give me a number for ten litres of water and grams for epsom salt ?
Click to expand...
Half a gram per liter. I just measured it out for you and that will give you about 150 ppm of nute.
1 gram was 300 ppm
 
S

Srotak

Member
cryptique said:
ppm pens are kinda expensive here for me to buy right know at least : / can i try testing soil with pure warer and one of those color charted ph kits?

and ro water i here it myuch but i dont actually know what its is exacly is it some kind of filtered tap water?
Click to expand...
Can't post a link yet but their out ther for 10 bucks,,,, man.
Been using one of these for 15 years or so,,, I even douched it a cple times too,,, a zip and rice fixed it rite up,,,, a new batt. Every year,,,, easy peasy,,,,

Cheaper than a mug of swag,,,,, oh,, ya,,,,,
 
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