Plants drooping/browning 5 days post transplant

BubbaBiscuit

BubbaBiscuit

Member
I transplanted from solo cups to 1 gallon fabric pots on 12/22. I also moved the plants into their grow tent under a 315 CMH with a fan blowing over them. The next day I had some brown spots on the first set of leaves, which I attributed to nutrient burn since I think I gave them too much immediately after transplanting.

I left them alone for the next few days and on 12/25 watered them with 6.5 pH'd water only, no nutrients. They looked okay yesterday but this morning I noticed that the brown spots have spread to the next set of leaves, and they look a bit droopy. Any thoughts on what I've done and tips to correct?

12/22
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12/23
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12/25
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12/27
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BubbaBiscuit

BubbaBiscuit

Member
Jypsy Dog said:
You bother to do any homework b4 you got started?
www.cocoforcannabis.com

Cannabis Grow Guide - Coco For Cannabis - Science and Practice

Cannabis grow guide: articles, tutorials, DIY projects & more! Dedicated to the science and practice of growing cannabis in coco perlite and other media.
www.cocoforcannabis.com www.cocoforcannabis.com
Click to expand...
Sure did, on this forum, the site you linked, and growweedeasy. The problem is that they all differ in the information they provide so it’s a bit of a guessing game and then ending up here seeking additional guidance.
 
Jypsy Dog

Jypsy Dog

Well-Known Member
BubbaBiscuit said:
Sure did, on this forum, the site you linked, and growweedeasy. The problem is that they all differ in the information they provide so it’s a bit of a guessing game and then ending up here seeking additional guidance.
Click to expand...
The info on the site I linked covered seedlings. Calmag issues are common. Never seen 6.5 pH recommend,that's soil.
 
rob333

rob333

Well-Known Member
BubbaBiscuit said:
I transplanted from solo cups to 1 gallon fabric pots on 12/22. I also moved the plants into their grow tent under a 315 CMH with a fan blowing over them. The next day I had some brown spots on the first set of leaves, which I attributed to nutrient burn since I think I gave them too much immediately after transplanting.

I left them alone for the next few days and on 12/25 watered them with 6.5 pH'd water only, no nutrients. They looked okay yesterday but this morning I noticed that the brown spots have spread to the next set of leaves, and they look a bit droopy. Any thoughts on what I've done and tips to correct?

12/22
View attachment 4444263

12/23
View attachment 4444260

12/25
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12/27
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i leave mine in waters trays for about 2 weeks after a transplant
 
BubbaBiscuit

BubbaBiscuit

Member
Jypsy Dog said:
The info on the site I linked covered seedlings. Calmag issues are common. Never seen 6.5 pH recommend,that's soil.
Click to expand...
I will look into the calmag issues. FYI, 6.5 is just my high-end guesstimate since I'm using the color chart on a General Hydroponics indicator solution bottle, so it may be a bit lower but it's in the yellow range. Guess I need a pH pen.

Also, while cocoforcannabis recommends a max pH of 6.3 for any stage in coco, growweedeasy recommends a max of 6.5 for coco. So there ya go. Cheers.

 
Jypsy Dog

Jypsy Dog

Well-Known Member
BubbaBiscuit said:
I will look into the calmag issues. FYI, 6.5 is just my high-end guesstimate since I'm using the color chart on a General Hydroponics indicator solution bottle, so it may be a bit lower but it's in the yellow range. Guess I need a pH pen.

Also, while cocoforcannabis recommends a max pH of 6.3 for any stage in coco, growweedeasy recommends a max of 6.5 for coco. So there ya go. Cheers.

Click to expand...
Well I guess you have this all figured out , So there YOU go. 6.5 makes for Shitty plants.
 

Attachments

FastFreddi

FastFreddi

Well-Known Member
BubbaBiscuit said:
I will look into the calmag issues. FYI, 6.5 is just my high-end guesstimate since I'm using the color chart on a General Hydroponics indicator solution bottle, so it may be a bit lower but it's in the yellow range. Guess I need a pH pen.

Also, while cocoforcannabis recommends a max pH of 6.3 for any stage in coco, growweedeasy recommends a max of 6.5 for coco. So there ya go. Cheers.

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These guys grow in coco, and sounds like they are just trying to help, Bro.Experience over book reading any day...research gets you started, experience and advice from seasoned growers gets you dank.
Peace,
FF.
 
F

Fevs.

Well-Known Member
I never feed my coco plants plain water until then flush at the end of the grow. If I were you I would feed them twice a day with run off. 1st feed should be cal mag ph'd to 6.0. Then next feed should be base nutrients ph'd 5.8 - 6.0. Do that and they will thrive. Get loads of run off. More run off you get, less problems and healthier plants you will get. By feeding once per day with cal mag, you setting the coco and plants up to lap up the base nutes on the following feeds. When you feed cal mag for 1 in 2 feeds. You are doing this... Look up cation exchange and coco. Do this and you'll never look back! Some free help which will resolve your problems buddy.

Buffering coco media is accomplished by exposing the cation exchange to a solution of water with a high concentration of the cations that are desired on the exchange sites—in this case, calcium or calcium and magnesium.
 
BubbaBiscuit

BubbaBiscuit

Member
Jypsy Dog said:
Well I guess you have this all figured out , So there YOU go. 6.5 makes for Shitty plants.
Click to expand...
Hey man, if I had this figured out I wouldn’t be in Newbie Central looking for help. You seemed to imply that I was pulling the 6.5 pH for coco out of my ass so I provided where I found that info, that’s all. I’m here to learn from my mistakes, not argue about something I know very little about.

I do appreciate the chart you posted, so thanks.
 
BubbaBiscuit

BubbaBiscuit

Member
Fevs. said:
I never feed my coco plants plain water until then flush at the end of the grow. If I were you I would feed them twice a day with run off. 1st feed should be cal mag ph'd to 6.0. Then next feed should be base nutrients ph'd 5.8 - 6.0. Do that and they will thrive. Get loads of run off. More run off you get, less problems and healthier plants you will get. By feeding once per day with cal mag, you setting the coco and plants up to lap up the base nutes on the following feeds. When you feed cal mag for 1 in 2 feeds. You are doing this... Look up cation exchange and coco. Do this and you'll never look back! Some free help which will resolve your problems buddy.

Buffering coco media is accomplished by exposing the cation exchange to a solution of water with a high concentration of the cations that are desired on the exchange sites—in this case, calcium or calcium and magnesium.
Click to expand...
I appreciate this info, thank you. I read up on buffering and cation exchange and it makes perfect sense. I will get that pH lowered and continue to supplement with cal mag.
 
F

Fevs.

Well-Known Member
I used to grow in soil for years. I found that I used to get like orange patches or spots on the leaves caused by over feeding. Then I switched to coco and had the same. It was underfeeding that caused it in coco. That's pretty much the only problem I came across, which was recified when I up'd the feed. I feed at 600 ppm from seed in coco. If seedlings can handle soil with ec 2.4, then 600 ppm is fine to start with in coco.
In soil you are better of slightly underdoing it. In coco you are better off slightly over doing it. If you get burnt tips on new growth, back off the feed a bit. If you don't, up it slightly. If you continue to starve your plants they will continue to look pretty rough. They love nutrients from go.
 
Jypsy Dog

Jypsy Dog

Well-Known Member
BubbaBiscuit said:
Hey man, if I had this figured out I wouldn’t be in Newbie Central looking for help. You seemed to imply that I was pulling the 6.5 pH for coco out of my ass so I provided where I found that info, that’s all. I’m here to learn from my mistakes, not argue about something I know very little about.

I do appreciate the chart you posted, so thanks.
Click to expand...
Fry on....
 
SheeshM

SheeshM

Well-Known Member
Good advice above. Make sure you're drainage is good, use cal-mag and try to get your ph down, 5.7 to 6.2 IMO. CA uptake for coco is best at mid to high 5's, P and Mg is best around 5.8 and up. If you're going with larger final containers, rinse and buffer your coco before transplanting.
 
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