Magnesium deficiency?

[Bud_Wiser]

Hello guys and gals,

Could someone please advise whether this is magnesium deficiency, or something else ?

Thank you


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[Trex]

Post pic of entire plant . Looks like a few issues ... heat being one .

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[M_C]

If you fill this out it should help us...

Soil or hydro or coco:

Strain:

Photo or Auto:

plant age:

pot size:

has it been repotted? and when?:

soil type:

nutes or additives used and how often for soil:

Air temps (max min):

Res temps (max min):

humidity:

lighting type and wattage (hps, led, cfl):

Light schedule:

ph level:

EC (hydro and coco only)

Background EC.

feed schedule and nutes (for hydro and coco)

anything else you think may be relevant!

[Bud_Wiser]

Here you go guys


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[Bud_Wiser]

Setup :-

Area = 240 x 240

Light = 2 x 600w HPS + 1 x 600w LED

Inlet = 1 x 6” inline bringing in fresh co2 from outside with variispeed controller

Extraction = 1 x 8” RVK with variispeed controller connected to rhino professional carbon filter and silencer going into spigot in floor and straight outside

Various 6” fans
————————
Environmental :-

Medium = Canna professional +
Pots 25lit smart bags (equivalence 40lit plastic pots)
Light cycle = 24/7 veg & 12/12 flower
Temperature = 27 - 35
Humidity = 40% - 55%
PH = 6.5
ECC = ?
————————
Nutrients (per lit):-

Veg :-
Plant magic mag cal 1ml
Superthrive 0.5ml
Plagron green sensation 1ml
Advanced Nutrition sensi grow part a & b 1ml until 6weeks then 2ml
Advanced Nutrition Voodoo Juice 1ml

Flower :-
Advanced Nutrition Sensi bloom part a & b 4ml (week 1-6)
Advanced Nutrition Voodoo Juice 2ml (week 1-2)
Advanced Nutrition Bud Candy 2ml (week 1-6)
Advanced Nutrition Big Bud 2ml (week 2-4)
Advanced Nutrition Sensizym 2ml (week 1-6)
Advanced Nutrition Nirvana 2ml (week 3-6)
Advanced Nutrition Overdrive 2ml (week 6-7)

———————
Current Grow Strains

1 x Strawberry Cough
1 x GSC
1 x Bud Bud Bling Ting

———————

Current Grow Stage = approx 21 days since germination have been in 25lit smart bags for past 7 days and have only been receiving half stated dosage for veg period.

All three have been topped after 4th node, which was done 36 hours ago.


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[Trex]

Looks fine apart from the 35° issue . Willing ti bet thats your only prob . At this stage 2-600w is way overkill dude

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[Bud_Wiser]

Oops sorry that led a typo I’ve only the 1 600hps and 1 600 led


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[Bud_Wiser]

Looks like I’ve got the temps a little better now fluctuating between now between 28 & 31


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[Trex]

Oops sorry that led a typo I’ve only the 1 600hps and 1 600 led


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The led may not give off much hest . But it can sure fry plants because of light intensity . What brand ?

Stabilise your heat . Keep hps lamp at least 24 in above . A top end led lamp will require about the same height give or take .

Temps ya want in groom is 26-28° day . 22ish at night .

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[Bud_Wiser]

Lovely thank you dude, so it’s a heat issue not a mag deficiency?


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[Bud Lightyear]

Exactly what nutes are you feeding at present and at what Ec ?.....Plants look under watered (dehydrated) and over fed....pH should be at around 5.8..6.5 is out of range for coco...God only knows why you have all those additives most of them are not needed..Also your temps are way to high @ 35c


Regards BL

[Bud_Wiser]

The led may not give off much hest . But it can sure fry plants

Temps ya want in groom is 26-28° day . 22ish at night]

Given I’m running 24/7 and don’t have a night should I still aim for 22 at night?


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[Trex]

Given I’m running 24/7 and don’t have a night should I still aim for 22 at night?


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Yea . Them plants need a resting period . Plus your just wasting electricity tbh

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[Bud_Wiser]

I’m outside in a shed and running veg 24/7 is the most cost effective way for me to maintain stable temperatures tbh.


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[Trex]

Yea . And like Bud says . All those additives are a waste .

Your base nutes a + b . With a root stim if you wish but not necessary . is all youll need at this point .

Later in flower . A + b plus a light dose of PK is all you need . You dint need all that hocus pokus b.s . Big money grab and that garbage .

That coco needs be more in moist side too . At this point . A water/feed at 2 give or take day interval til she drinks up more .

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[Bud_Wiser]

Exactly what nutes are you feeding at present and at what Ec ?.....Plants look under watered (dehydrated) and over fed....pH should be at around 5.8..6.5 is out of range for coco...God only knows why you have all those additives most of them are not needed..Also your temps are way to high @ 35c


Regards BL

Hi BL,

I’m 1ml per lit of cal mag, 2ml coco grow part a & b 1 ml of green sensation, 1ml voodoo juice.


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[Trex]

What ph are you feeding at ? Your goal is 5.7
If mixed in large reseroivoir . Set at 5.7 and let drift to 6.2 then reset back to 5.7

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[Trex]

Hi BL,

I’m 1ml per lit of cal mag, 2ml coco grow part a & b 1 ml of green sensation, 1ml voodoo juice.


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Drop calmag . Use it as a foliar ince a week . Drop voodoo juice and green sensation .

You can use voodoo juice i rekon as a rootstim if you want but not necessary

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[Bud Lightyear]

Hi BL,

I’m 1ml per lit of cal mag, 2ml coco grow part a & b 1 ml of green sensation, 1ml voodoo juice.


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Just guesswork ml per litre mate especially if your new to coco or novice...Grab yourself a Ec meter mate, Essentials or Bluelabs truncheon save yourself the ball ache of guessing your feed strength....


Regards BL

[Bud_Wiser]

So how much water should I be giving them atm?


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