Lightening of the leaves

[danzibar1]

Strain

zowahh

substrate coco 60/40

canna coco nutrient line
A+b
Rhizo
CANNAZYM
Calmag
Boost

day temp 26
Humidity 67

night temp 21
Humidity 64

cal mag ec 0.4

a+b ec 0.9

total ec 1.3

no issue with Roots I’m in cloth pots and the roots are absolutely crazy

initially I was running lower ec so bumped her up
Thinking she wanted more N but the issue only subsided once I flushed with a weak solution and slowly brought her back

I’ve suffered with over watering in the past
And a possibility I have gone the opposite way And not watered enough creating possibly ec spike ph fluctuation worsening with every feed

I have sort of super cropped them a little which I think stressed them quite a lot





they did perk up with a foilar feed of calmag but I suppose they Would if they got drenched

whats everyone’s opinions. ?

I am a little rusty not done anything for a few years now

maxi bright daylight 660 what

running at around 500whatss

two hps running at 250 whatt

8 inch intake and outtake

rhino filter

g.a.s enviro controller and humidifier

water filtration giving me 0.0 ec
(Not R.O)

water brought upto 0.4 ec with calmag
Then topped up with base a+b

 

[danzibar1]

Possible micronutrient deficiency
Zinc maybe

since photo was taken the plant has lightened
As tho she isn’t photosynthesising

not all plants are struggling most have bounced back it seems the zkittle phenos are the ones suffering

 

[Floyde]

My plant is an 1in high and turnlng yellow what wrong with it.

 

[Grow Monster]

U are giving them to much light imo. do u test your dli to see how much they receive daily. I had similar issue and all was fixed by either raising light or turning down dimmer. They will darken up. What's happening is its doing to much photosynthesis. It's working harder/faster trying to drink enough water to handle the light. What ends up happening is yellowing between the veins or light plants. A gd app to test light par/ppfd is photone. And u can find charts of what intensity is needed at every stage. U only need between 500-900 par and anything more u might need co2. some can take 1000-1200 but that depends on the strain and your environment. The app test dli and some other things. Only downside is they charge $6 for iPhone which is more accurate then the free Android one.

 

[Creature1969]

Drop the calmag and just run A+B @ 1.0EC.

 

[Grow Monster]

For the tent size im seeing (maybe 4x4 idk) 500 watts is more then enough. U only need 30watts per square foot. And 16x30= 480.

 

[Grow Monster]

But u shouldn't be at 500watts during veg or early bloom. Thats late bloom when u pour on that many watts.

 

[Killer Sativa]

I did not notice but what ph is he water you are using?

 

[danzibar1]

I did not notice but what ph is he water you are using?

5.8 to 5.9

 

[danzibar1]

U are giving them to much light imo. do u test your dli to see how much they receive daily. I had similar issue and all was fixed by either raising light or turning down dimmer. They will darken up. What's happening is its doing to much photosynthesis. It's working harder/faster trying to drink enough water to handle the light. What ends up happening is yellowing between the veins or light plants. A gd app to test light par/ppfd is photone. And u can find charts of what intensity is needed at every stage. U only need between 500-900 par and anything more u might need co2. some can take 1000-1200 but that depends on the strain and your environment. The app test dli and some other things. Only downside is they charge $6 for iPhone which is more accurate then the free Android one.

Very possible

these cuts came from a led ran room
Which is running co2

I will lower the lights overall volume of power
And keep an eye on watering

 

[danzibar1]

Drop the calmag and just run A+B @ 1.0EC.

What’s your thoughts behind this pal

 

[Killer Sativa]

U are giving them to much light imo. do u test your dli to see how much they receive daily. I had similar issue and all was fixed by either raising light or turning down dimmer. They will darken up. What's happening is its doing to much photosynthesis. It's working harder/faster trying to drink enough water to handle the light. What ends up happening is yellowing between the veins or light plants. A gd app to test light par/ppfd is photone. And u can find charts of what intensity is needed at every stage. U only need between 500-900 par and anything more u might need co2. some can take 1000-1200 but that depends on the strain and your environment. The app test dli and some other things. Only downside is they charge $6 for iPhone which is more accurate then the free Android one.

Your Ph is on point then this is most likely the issue

 

[Grow Monster]

Imo the only way u can drop calmag is if u start adding ewc and start using 6.5ph. Coco is inert so u can use it like hydro but u will need calmag. I run my coco more like soil and I use tap water which comes with 170ppm of cal. But also look at Epsom salt as a natural mag. It will green up a garden. Its cheap, organic and u dont need much. But honestly u should do one thing at a time to see what actually works. After adjusting the light everything might lock in. U dont wanna be chasing your tail.

 

[Creature1969]

Imo the only way u can drop calmag is if u start adding ewc and start using 6.5ph. Coco is inert so u can use it like hydro but u will need calmag.

Wrong. Canna nutes have plenty cal and mag.

 

[Grow Monster]

Wrong. Canna nutes have plenty cal and mag.

U might be rt cus I haven't used Canna nutes but he has red lines down the stalk and red stems which is an indication of needing to up the calmag. Guidelines are gd but listen to your plant. She might be calmag greedy. I've also noticed calmag is needed more in plants when grower lets coco medium dry more. I think the coco eats it when drying.

 

[Grow Monster]

I guess i did use canna nutes a few years back and I did use calmag with it. My octopot days.

 

[danzibar1]

U are giving them to much light imo. do u test your dli to see how much they receive daily. I had similar issue and all was fixed by either raising light or turning down dimmer. They will darken up. What's happening is its doing to much photosynthesis. It's working harder/faster trying to drink enough water to handle the light. What ends up happening is yellowing between the veins or light plants. A gd app to test light par/ppfd is photone. And u can find charts of what intensity is needed at every stage. U only need between 500-900 par and anything more u might need co2. some can take 1000-1200 but that depends on the strain and your environment. The app test dli and some other things. Only downside is they charge $6 for iPhone which is more accurate then the free Android one.

Downloaded the app before and got dialled in cheers pal

 

[curious2garden]

.........snip........
substrate coco 60/40

What else is mixed with the coco?

 

[Creature1969]

I guess i did use canna nutes a few years back and I did use calmag with it. My octopot days.

Doesn't mean you needed it.

 

[PJ Diaz]

I guess i did use canna nutes a few years back and I did use calmag with it. My octopot days.

Canna AB is specifically made for coco grows. Why would you need to add calmag?