What went wrong, bleached leaves, curling, brown spots, curling, new grow

myke said:

Roots grow very quickly in coco,if there a week in those small pots yes runoff.Twice a day if ya wants quicker growth.

No i mean the pots not jiffy pellet

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Ah ok, i had them in jiffy until i saw roots come out the bottom and then they went into a paper cup with holes in bottom. Once the plants had 3 nodes i then transferred them to 2 gal fabric pots.

Is it the small paper drinking cups you refer to when watering until run off twice a day ? When they are transfer to 2 gal pots, do you run off again until run off each day ? Im still reading cocoforcannabis and putting together a schedule.

CBS2020 said:

Ah ok, i had them in jiffy until i saw roots come out the bottom and then they went into a paper cup with holes in bottom. Once the plants had 3 nodes i then transferred them to 2 gal fabric pots.

Is it the small paper drinking cups you refer to when watering until run off twice a day ? When they are transfer to 2 gal pots, do you run off again until run off each day ? Im still reading cocoforcannabis and putting together a schedule.

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Yes always water to runoff in all size pots

CBS2020 said:

Hi everyone. Been reading lots, and learning.
I’m at day 18 for autos, and day 11 for photos. Some are going well but some not so. Hope you can help. I have not used nutrients yet.
What I would like to know in first week how much water should be given / soaking the media until runoff before transplant etc.. Then from that point how much water to feed.

5 issues I have noticed;
Yellow / bleached leaves on the autos
Brown spots / brown lines
Brown around the edges
Curling up
Stunted growth

See photos attached (autos from day 7 to 11) - some bleaching and brown spots (what are the causes for each) ?

Most reading points to overwatering, heat / light stress, wind/fan burn
- Lights were run 24 hours for first 2 weeks then cut back to 18/6 schedule
- Temps did get to 28 C / 82F for few days but now controlled at 26 C / 78F
- Humidity around 60-70%
- 70/30 coco/perlite mix (with about 10% vermiculite)
- 630watt LED at 25-30% light and 27” above top of canopy (was at 22”)
- Fans were pointed directly at the plants but are now for the last 5 days are blowing overhead instead
- Pots are all fabric pots that were just sat in saucers but now are sat on mesh metal pot stands within the saucer to help with drainage.
- Run off was around 250-300ppm when rinsing the media
- pH for them all is now around 5.8 to 6.1

More info on Autos
- Autos were in paper cups with drain holes that were then transplanted to 5 Gal (I read not to transplant shock and plant in the pots you aim to grow in from the start)

- They were under a 400watt LED and 18” away but after reading about bleaching causes I moved them to other LED light where there was more space. (will the bleaching go away or just not occur from this point on?)

- pH was on average on the low end 5.4 to 5.8 and each day I was trying to mist higher pH water to bring it up.


I have also attached pics of the photos which shows brown spots, curling - ideas?

Click to expand...

Just off a glance you burned them with too much macro nutes hence the burn in between veins.

after reading 250-300 run off is too high for those. Assuming you fed again the ppm in the medium is probably around 500-800 ( hence your burn )

use water for 3 watering a

dial nutes back to1/4 strength and work your way up every watering to “full” dose prior to burning

hope that helps

less is always more.

DougsNugggs said:

Just off a glance you burned them with too much macro nutes hence the burn in between veins.

after reading 250-300 run off is too high for those. Assuming you fed again the ppm in the medium is probably around 500-800 ( hence your burn )

use water for 3 watering a

dial nutes back to1/4 strength and work your way up every watering to “full” dose prior to burning

hope that helps

less is always more.

Click to expand...

I disagree. I'm seeing P and K deficiency, possible pH issues and maybe some wind and light/heat stress. OP even stated that he wasn't feeding them for weeks. He's in coco and only gave water.

OP, feed those babies, they're hungry! (check your PMs too)

sf_frankie said:

I disagree. I'm seeing P and K deficiency, possible pH issues and maybe some wind and light/heat stress. OP even stated that he wasn't feeding them for weeks. He's in coco and only gave water.

OP, feed those babies, they're hungry! (check your PMs too)

Click to expand...

Yes correct i had not fed them anything yet.

They have now all had 600ms cal/mag ph 6.1-6.2 water until run through. Source water nice and low around 180ms.

Only thing i have not yet read is if not mixing cal/mag in a existing schedule like Canna has, is it fine to do 600ms to run off one day and then Canna A+B 800-1400ms the next day ? Or should you flush with 6.1 water first to remove any remaining cal/mag sat in the media ?

Thanks

CBS2020 said:

Yes correct i had not fed them anything yet.

They have now all had 600ms cal/mag ph 6.1-6.2 water until run through. Source water nice and low around 180ms.

Only thing i have not yet read is if not mixing cal/mag in a existing schedule like Canna has, is it fine to do 600ms to run off one day and then Canna A+B 800-1400ms the next day ? Or should you flush with 6.1 water first to remove any remaining cal/mag sat in the media ?

Thanks

Click to expand...

Make a batch of canna at correct strengt, feed until Runoff. If u wanna flush u just feed them more from same batch.
Jumping from no feed to high feed might be bold.

CBS2020 said:

Hi everyone. Been reading lots, and learning.
I’m at day 18 for autos, and day 11 for photos. Some are going well but some not so. Hope you can help. I have not used nutrients yet.
What I would like to know in first week how much water should be given / soaking the media until runoff before transplant etc.. Then from that point how much water to feed.

5 issues I have noticed;
Yellow / bleached leaves on the autos
Brown spots / brown lines
Brown around the edges
Curling up
Stunted growth

See photos attached (autos from day 7 to 11) - some bleaching and brown spots (what are the causes for each) ?

Most reading points to overwatering, heat / light stress, wind/fan burn
- Lights were run 24 hours for first 2 weeks then cut back to 18/6 schedule
- Temps did get to 28 C / 82F for few days but now controlled at 26 C / 78F
- Humidity around 60-70%
- 70/30 coco/perlite mix (with about 10% vermiculite)
- 630watt LED at 25-30% light and 27” above top of canopy (was at 22”)
- Fans were pointed directly at the plants but are now for the last 5 days are blowing overhead instead
- Pots are all fabric pots that were just sat in saucers but now are sat on mesh metal pot stands within the saucer to help with drainage.
- Run off was around 250-300ppm when rinsing the media
- pH for them all is now around 5.8 to 6.1

More info on Autos
- Autos were in paper cups with drain holes that were then transplanted to 5 Gal (I read not to transplant shock and plant in the pots you aim to grow in from the start)

- They were under a 400watt LED and 18” away but after reading about bleaching causes I moved them to other LED light where there was more space. (will the bleaching go away or just not occur from this point on?)

- pH was on average on the low end 5.4 to 5.8 and each day I was trying to mist higher pH water to bring it up.


I have also attached pics of the photos which shows brown spots, curling - ideas?

Click to expand...

You need to use nutrients every day. Coco has no nutes and holds no nutes. Im surprised they are alive just off the base nutrients in your water. You should read up on coco before treating it like soil. Its not a soil replacement... its hydroponics

CBS2020 said:

Yes correct i had not fed them anything yet.

They have now all had 600ms cal/mag ph 6.1-6.2 water until run through. Source water nice and low around 180ms.

Only thing i have not yet read is if not mixing cal/mag in a existing schedule like Canna has, is it fine to do 600ms to run off one day and then Canna A+B 800-1400ms the next day ? Or should you flush with 6.1 water first to remove any remaining cal/mag sat in the media ?

Thanks

Click to expand...

You can add CalMag to any nute schedule. I mix everything up and then add the CalMag. Ratio changes depending on what my plants say.

And start feeding now. Every single day. Plants can't survive on just water in Coco. You are treating your plants like they are in soil that already has nutrients in it. Those things are gonna die if you don't feed them right away. What made you think you could just water your plants without feeding? Are you following some sort of tutorial?

Destroyer of chairs said:

Make a batch of canna at correct strengt, feed until Runoff. If u wanna flush u just feed them more from same batch.
Jumping from no feed to high feed might be bold.

Click to expand...

I have flushed with 600ms Cal/Mag and this morning gave 100-200ml of Canna A + Canna B at a 800ms dosage, i was not sure how long the nutes stay in the coco for and when im free to add more and not get nutrient burn.

oill said:

You need to use nutrients every day. Coco has no nutes and holds no nutes. Im surprised they are alive just off the base nutrients in your water. You should read up on coco before treating it like soil. Its not a soil replacement... its hydroponics

Click to expand...

Yes the water i use is really good, the gold leaf you can see was doing surprising well.
The info i was reading was soil/coco suggestions and they did not go into no where near the depth that cocoforcannabis does so now that is my primary research and i have read about 6 of his guides so far

sf_frankie said:

You can add CalMag to any nute schedule. I mix everything up and then add the CalMag. Ratio changes depending on what my plants say.

And start feeding now. Every single day. Plants can't survive on just water in Coco. You are treating your plants like they are in soil that already has nutrients in it. Those things are gonna die if you don't feed them right away. What made you think you could just water your plants without feeding? Are you following some sort of tutorial?

Click to expand...

Yes total rookie mistake. Learned many lesions so far.
LED light too soon from seedlings
Light too close even if on 25%
Fans should not be pointed directly at plants so young
not to be worried about over watering coco
not feeding nutes right away
not balancing cococoir with cal/mag after flushing it


Just need to know;
Does Canna A + B have enough Cal/Mag in it if im watering 2-3x a day or should you pretty much add cal/mag to feed the cococoir so all the cal/mag in the Canna goes to the plants
How long after watering to run off can you water again with the same nutes or alternative Cal/Mag with other nutes or just combine and keep cal/mag around 200ms and the rest make up to the recommended EC as per part of the growth stage?

Thanks for everyone's help

CBS2020 said:

I have flushed with 600ms Cal/Mag and this morning gave 100-200ml of Canna A + Canna B at a 800ms dosage, i was not sure how long the nutes stay in the coco for and when im free to add more and not get nutrient burn.



Yes the water i use is really good, the gold leaf you can see was doing surprising well.
The info i was reading was soil/coco suggestions and they did not go into no where near the depth that cocoforcannabis does so now that is my primary research and i have read about 6 of his guides so far



Yes total rookie mistake. Learned many lesions so far.
LED light too soon from seedlings
Light too close even if on 25%
Fans should not be pointed directly at plants so young
not to be worried about over watering coco
not feeding nutes right away
not balancing cococoir with cal/mag after flushing it


Just need to know;
Does Canna A + B have enough Cal/Mag in it if im watering 2-3x a day or should you pretty much add cal/mag to feed the cococoir so all the cal/mag in the Canna goes to the plants
How long after watering to run off can you water again with the same nutes or alternative Cal/Mag with other nutes or just combine and keep cal/mag around 200ms and the rest make up to the recommended EC as per part of the growth stage?

Thanks for everyone's help

Click to expand...

It doesn't matter how "good" your water is, its not plant food and coco does not contain any plant food. Its a miracle that your plants have made it thus far on just water. Coco is a soilless medium, treat it like hydro. Make sure that when you are reading cannabis growing tutorials to check what medium is being used! With coco, you are in complete control of what nutrients are available to your plants. Most soil growers use a pre-amended soil that already has nutrients in it so we don't have to feed until all of the baked in nutrients are consumed by the plant. Some people start adding nutrients right away but I have chosen not to because last time I did I dealt with nutrient lockout early on,

How much Cal/Mag you use is going to depend on your water supply. Most municipal tap water has calcium and magnesium in it but the concentration varies depending on the source. I've never personally used Canna but it looks like it has some Ca and Mg in it. That may or may not be enough for your grow. My tap water is relatively soft so I add 3ml/gal as a baseline and then wait for the plant to tell me if I need more. If I lived somewhere with hard water, I probably wouldn't need any cal/mag. Hard water is high in dissolved minerals (mainly Ca and Mg) and soft is not. My municipal water company provides annual water quality reports that lists mineral concentrations. If you are using RO water then its not gonna have any minerals in it so you will need to add CalMag.

You will need to do some research into reading nutrient deficiencies and once you learn to identify them, you'll know how much CalMag to ad. I've never grown coco before but from what I've read on here, some people buffer their coco before the grow by soaking the coco in a solution prepared with CalMag. Its possible to buy pre-buffered coco so if you did then you wouldn't have needed to perform this step. If you got non buffered coco and you missed this step then not all of the nutrients you feed will be immediately available to your plant. Again, I don't grow in coco personally so you may want to wait for someone with experience to come thru and either correct or confirm what I've said. I've done some research on it as I plan to give it a shot soon but I am far from an expert.

CBS2020 said:

I have flushed with 600ms Cal/Mag and this morning gave 100-200ml of Canna A + Canna B at a 800ms dosage, i was not sure how long the nutes stay in the coco for and when im free to add more and not get nutrient burn.



Yes the water i use is really good, the gold leaf you can see was doing surprising well.
The info i was reading was soil/coco suggestions and they did not go into no where near the depth that cocoforcannabis does so now that is my primary research and i have read about 6 of his guides so far



Yes total rookie mistake. Learned many lesions so far.
LED light too soon from seedlings
Light too close even if on 25%
Fans should not be pointed directly at plants so young
not to be worried about over watering coco
not feeding nutes right away
not balancing cococoir with cal/mag after flushing it


Just need to know;
Does Canna A + B have enough Cal/Mag in it if im watering 2-3x a day or should you pretty much add cal/mag to feed the cococoir so all the cal/mag in the Canna goes to the plants
How long after watering to run off can you water again with the same nutes or alternative Cal/Mag with other nutes or just combine and keep cal/mag around 200ms and the rest make up to the recommended EC as per part of the growth stage?

Thanks for everyone's help

Click to expand...

Coco nutes will have added calmag already... I only use calmag when there is an issue. In this case your issue was no nutes... you don't need the calmag... just feed em!