I need a Coco Doctor asap ;)

[monnema]

hi,
I'm on day 26 growing 6 RQS Northern Lights in 16L fabric pots

medium: Ecothrive Coco+2%+Charge(3-2-2)+30% perlite

Grow light: HIPARGERO LED Grow Light - 800W COB LED

Because I'm growing in my Attic I had some heat issues in the first 2 weeks with temps as high as 34°C but thats sorted now.
After 2 weeks I stuck half a biotab on each side of the plants but more towards the edge of the pots.
and a week later another half each side but closer to the plants.
The girls proper exploded after that but now they look like this.

Is this N-toxicity?

I would b grateful for any help. Thanks

 

[monnema]

Problem: see pictures

Medium/grow method: Ecothrive coco pre-mixed with 2% Ecothrive Charge(3-2-2) + 30% Perlite in 16L fabric pots

Feed: and supplements used: Biobizz Root Juice(first 2 weeks), 2 Biotabs(15-7-8) each pot(after 2 weeks), Ecothrive Biosys(once in week3), for flowering Biobizz Bio-Bloom(2-7-4)(not yet used)

water source: tap dechlorinated

Strain/age: RQS Northern Lights Autos Day 26

light used: COB 800W 18/6 light off: 12PM-6
Temps on lights on 25°- 29°C lights off 20° - 27°C depends on the weather

Additional info:big problems in the first two weeks with some days hitting 30-34°C in the growroom which stunted the growth. Got that down to 29°C on a hot day now.

 

[Medulla_Oblongauto]

I'm only a new grower myself but I don't think it looks like N toxicity. It looks more like a deficiency of some kind. Magnesium maybe?

 

[Uro]

hows the air circulation , in and out of the tent , and how much water are you giving them and how often,

id back off nutes to see if the problems worsens , or goes away and i would let the plant dry out to point it start to droop , or go back to when your plant was healthy and what have you changed since then ,

 

[Arthur]

Phosphorus

 

[bad dragon bzzz]

given plant age,cococo pre charged or top gressed,2 pucks in a pot and feeding expensive root stuff,with other stuff.
the plant should have all the nutes it needs,wants and more.
and have ya got a ph pen ? its more important in cococo than soil.and it should be the first question asked.
good luck n keep er lit.

 

[monnema]

thanks for the replies guys,

I'm only a new grower myself but I don't think it looks like N toxicity. It looks more like a deficiency of some kind. Magnesium maybe?

https://www.growweedeasy.com/cannabis-plant-problems/magnesium-deficiency

God I'm an Idiot I forgot about the bloody CalMag

@Arthur Yep, makes all sense now, no Calcium leads to no Phosphorus. Thank U

@Uro 5" fan out, 4" fan in, 1 oscillating fan and 1 small fan blowing towards the LED, I don't think its over-watering I go by the weight of the pots

@archie gemmill yep, I PH to 6.0 and the run off on all girls is around 6.5

 

[bad dragon bzzz]

ohh yeah and shedloads of calmag.i thought cococo liked more 5.5 ish

 

[Garage_Grower]

You want to keep your ph around the 5.8 range with coco, 6.0-6.5 is going to cause all kinds of trouble for you.


Easy smoking! [emoji869]

 

[monnema]

Ok, should I flush em with 5.8 water with added calmag?
Its not looking good at all!
Except the first girl which is weird!