Whats going on here then...???

[donbronzi]

Hi

I am growing some plants under LEDs scrog method, they are now 2-3 weeks since switching to 12/12 and 3 plants of the same strain are showing signed of disease or Nute deficiencies. Any one have any idea what it is and how to solve? I am swinging towards MG lock out, i am using bio grow and bloom at 3ml grow and 1ml bloom for every 1l of water. This is every other feeding.

Thanks in advance for your time.

 

[LyryC]

calcium, were you using tap water and swtiched to R/O?

Looks like calcium deficiency

are you growing in coco?

 

[donbronzi]

Thanks for your reply!!

Always been using rain water, growing in soil. The plants were fine until i did the first watering with bloom.

You don't think its mg then??

 

[GodsCronik]

had the same issues under LED, added one ML/L of CALMAGIC from GH and all my problems went away.

 

[FromHolland]

You guys get these problems because of the LED. Compared to HPS LEDs don't produce a lot of heat. So your plants wont use a lot of water which means they don't get the proper level of nutes. This explains the deficiency.

So how do you solve this? Give the plant 60% less water then you would do with an HPS and increase the nutes with 25%. This always works in my experience. Good luck!

 

[donbronzi]

Been busy as hell, only just seen this reply.. You reckon increase nut to water ratio??

Makes sense......

 

[ChasingGreen]

I agree with the calmag deficency. Also, why are you doing 3parts grow to 1 part bloom in flower? I'd swap that around to 3 parts bloom 1 part grow by week 3.