Coco grow stunned?

[Cocogrower420]

Hello everyone, this is my second time posting here and second indoor grow. Have grown outdoors with success but having trouble nailing down my CoCo choir grows. I am using CANNA nutes with a 70% coco / 30% perlite mix. I have two plants going in a 4x4 tent at the moment with one plant a couple weeks behind the first. My first plant was booming good and all of a sudden growth has slow dramatically with my second one growing good. I am having problems with Humidity here as its winter still but am not sure if thats my problem. I starved my older one on accident when i couldnt make it home for work but that was a little over a week ago. Any feedback would be greatly apreciated as im trying to aconplish the best grow i can.

 

[Tim1987]

Hey mate.
Are you running Canna regular, or Canna coco? I havn't used either before.
Can you tell us the npk%, and take a photo of the analasys on the back of all your micros etc?
Whats your ppm and ph? If you dont know your ppm, how many mL's to a litre are you feeding?
Runoff ppm, and ph too?
Where does your water come from? What are its ph and ppm's ?
Do you run straight tap, RO, distilled, well, tank water etc.
Are you supplementing calmag as well?
Any other supplements?
Best wishes, let us know.

 

[Cocogrower420]

Hey tim. Thanks for the reply. Im using the coco A+B with Cannazym and Rhizotonic at the moment. I have a PK 13/14 additive that i use in flower and also a Bloom booster for flower. When i feed i have been able to nail my Ph to 5.8 and my current PPM is 1200 including tap water . My Run off is matching up with those numbers. I am using Tap water from our spring and the PPM of that alone ranges from 90-150. I am currently not using calmag but can buy some if needed.

 

[Tim1987]

Hey tim. Thanks for the reply. Im using the coco A+B with Cannazym and Rhizotonic at the moment. I have a PK 13/14 additive that i use in flower and also a Bloom booster for flower. When i feed i have been able to nail my Ph to 5.8 and my current PPM is 1200 including tap water . My Run off is matching up with those numbers. I am using Tap water from our spring and the PPM of that alone ranges from 90-150. I am currently not using calmag but can buy some if needed.

IMHO
Flush it, with ph'd water. Get your ppm right down. To near your water.
Cut your feed ppm back to 400 or 600, and buffer your coco back. Id be starting at around 400.
Stop the bloom booster for now. K can be a battle in coir.
Rhizotonic, should be cool.
When the plant perks up. Start bumping up the feed, in increments.
Thanks for your helpful info dude.
Best wishes
Keep us updated.

 

[Cocogrower420]

Roger that ill give that a try and see what happens. Im currently not running the boost as im still vegging. I apreciate your help and information!

 

[Tim1987]

Roger that ill give that a try and see what happens. Im currently not running the boost as im still vegging. I apreciate your help and information!

No worries mate.
I think it just needs a bit of a flush.
Think you just slightly over did your ppm.
Just work it back up bit, by, bit.
Good luck.

 

[Cocogrower420]

UPDATE: Flushed my Cookies Kush 3 days ago looks a little better this is week 6 of veg for it. I believe it should look better but not sure what's going on. Ill post two pics of her first. My second plant is herijuana jack and seems to be doing good so far i just transplanted into 3g pot. Let me know what you guys think.

 

[Tim1987]

What's your ph?
Is it high?
Give me a few i'll upload a great article about coco, by CANNA.
I'll upload a chart too.
Just give me 5

 

[Cocogrower420]

What's your ph?
Is it high?
Give me a few i'll upload a great article about coco, by CANNA.
I'll upload a chart too.
Just give me 5

Np i have nothing but time at this point! Lol im feeding at 5.8 i ran 4 gal through my 3 gal smart pots and my run off was still 6.5 . Kinda stumped me lol

 

[Tim1987]

2 of them do look ok though, like you said.
Do you know if one strain is a heavier feeder?

 

[Tim1987]

http://www.canna.com.au/growing_on_coco_busting_the_myth

 

[Tim1987]

Your runoff, sounds like the problem.
If you're putting in 5.8, and its coming out 6.5. Your coco's gotta be around the 7ish mark.
You gotta get that runoff down, to match what you put in.
May want to do it all slow though, over several days.
I think it just has a few too many salts, and needs a flush.
Did you get your coir in a block? Or ready-to-go in a bag?

 

[Cocogrower420]

I couldnt find much info on the strains as far as someone elses grow. They were freebies from a site i got and figured to give em a go. Ill deff check out that article. The 6.5 judging from that chart i wouldnt think would be letting it grow so poorly. I love the idea of coco but man im wishing i went DWC lol

 

[Tim1987]

I couldnt find much info on the strains as far as someone elses grow. They were freebies from a site i got and figured to give em a go. Ill deff check out that article. The 6.5 judging from that chart i wouldnt think would be letting it grow so poorly. I love the idea of coco but man im wishing i went DWC lol

Yeah coir can be a bit of a problem child.
I love it for its cheapness.
Its just a constant battle to keep it zen, with some coir.
Having said though, ive mixed it with 50% peat moss before. That was a great buffer. Kept my ph right about 6.1. Even when it was dry.
Might be woth a shot if you're gonna transplant?

 

[Cocogrower420]

I already have them transplanted into the 3g smarties so i was gonna be done. I can second the cheapness of it. And i have seen some journals that were pretty impresive with coco. When i look up symptoms to try and figure it out. Nothing really stands out to me on what it can be.

 

[Tim1987]

Whats the ppm of your runoff reading??

 

[Tim1987]

Might be worth getting some pool strips, to test for sodium chloride too.
I havn't used them before though, im sorry.
I cant say whether they'll work or not.

 

[Tim1987]

It could be sodium chloride, building in your coco.
Quite possible if using hard water too.
Although, since you've had several successful grows, with the same water. Im gonna take a stab in the dark, and say, its in the coir.
It really is a guess though.
But i use hard water, and have experienced this too.
You're not alone mate.

 

[Cocogrower420]

It could be sodium chloride, building in your coco.
Quite possible if using hard water too.
Although, since you've had several successful grows, with the same water. Im gonna take a stab in the dark, and say, its in the coir.
It really is a guess though.
But i use hard water, and have experienced this too.
You're not alone mate.

Well i apreciate your help tim. If anything else comes up ill post. Maybe they will turn around and i can get some good produce from them! I mean after all that is all of our goals!

 

[Cocogrower420]

Also, do you think i should maybe try a dose of cal/mag and maybe some ebsom salts? Maybe it will help?