LED’s and calmag ?

boilingoil · May 19, 2018

WeedSexWeightsShakes said:
Which is hid and which is led?

left is led, right is hid. both were started under led but the one on the right went back under the hid 10 days ago.

WeedSexWeightsShakes · May 19, 2018

boilingoil said:
left is led, right is hid. both were started under led but the one on the right went back under the hid 10 days ago.

You mention leds need feed less often. So you been feeding them lower ppms or what? They look hungry lol.
What’s the differences between them, besides the lights?

WeedSexWeightsShakes · May 19, 2018

My current grows
Bigger tent has some problems cause I was gone for a few days and temps got too high.

boilingoil · May 19, 2018

WeedSexWeightsShakes said:
You mention leds need feed less often. So you been feeding them lower ppms or what? They look hungry lol.
What’s the differences between them, besides the lights?

No feeding a higher nutrient strength on the led sides. 450 ppm on the hid side and 700 ppm on the led side.
I took 12 Identical cuttings, all started in Happy Frog and all started under led.

Even in the solo cups the Happy Frog usually has enough nutrients to get by the first week but these started showing signs 2 day after potting so I fed a light nutrient feed.

WeedSexWeightsShakes · May 19, 2018

boilingoil said:
No feeding a higher nutrient strength on the led sides. 450 ppm on the hid side and 700 ppm on the led side.
I took 12 Identical cuttings, all started in Happy Frog and all started under led.
View attachment 4138495
Even in the solo cups the Happy Frog usually has enough nutrients to get by the first week but these started showing signs 2 day after potting so I fed a light nutrient feed.

Ya I can’t relate cause I use coco.

boilingoil · May 19, 2018

WeedSexWeightsShakes said:
Ya I can’t relate cause I use coco.

That's my normal medium, at least for the last 10 years. Coir plants experience it too.
Those were suppose to go outdoors but with the weather we are having they got delayed and a new round of cuttings for outdoor were rooted.

gwheels · May 19, 2018

RO and CMH need a boost to Calmag. I start at 200 PPM with 0 PPM water and it has cured most problems.

Experthg · May 17, 2022

Gman94 said:
Hey, whats your opinion on LED’s and calmag supplementation ? Im having major problems with calcium lockout or deficiencies, and cant really tell wich one it is, making it really hard to fix the problem ...

Has anyone experienced similar difficulties with LED grows? This is my first LED grow and its my first time experiencing calcium deficiency/lockout ever.

The led im using is a HLG 260w 4000k

Just increase base EC

LED’s and calmag ?

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