Canna Coco Issues

B

BuddzKillington1015

Active Member
MickFoster said:
What pH are you using?
Feeding schedule?
Do you give plain water?
What size are those pots?
Click to expand...
What pH are you using? 5.8 to 6.2

Feeding schedule? Water every other day with nutes and move to daily once roots have been established. Following canna coco schedule. Canna A/B and Rhizotonic 7/7/7.5 ML per gallon

Do you give plain water? Reverse osmosis water with nutrient and calmag

What size are those pots? 1 gallon moving to 3 gallon in a couple weeks
 
O

oill

Well-Known Member
BuddzKillington1015 said:
Day 18 on veg. Using canna coco nutes with Cali magic at 630 ppm. Run off was 1000 ppm but ran nutrient solution at 600 ppm and got it down to 650 ppm. Topped a couple days ago and I’m seeing issues with the leaves. Anyone experience these issues or know what it could be?
Click to expand...
Coco nutes have calcium and magnesium.... im assuming that's what cali magic is... so stop using that.
 
B

BuddzKillington1015

Active Member
oill said:
Coco nutes have calcium and magnesium.... im assuming that's what cali magic is... so stop using that.
Click to expand...
But I’m using RO water which is at 4 ppm, doesn’t that need additional Calcium? Also the canna coco line also include a calmag supplement which I am replacing with Cali magic
 
OneMoreRip

OneMoreRip

Well-Known Member
What was run off ph and you said ppm was to high so the plant got messed, needs time to recover. Could take a while.

also make sure ph meter is calibrated recently

the newest growth is looking better, since fixing high ppm it looks like. ?

give it time and make sure ppm and ph stays good. I used 700 ppm/1.3ec general purpose nute only start to finish in coco, works great

ph of medium is most important, otherwise nothing else works correctly
 
Last edited:
B

BuddzKillington1015

Active Member
OneMoreRip said:
What was run off ph and you said ppm was to high so the plant got messed, needs time to recover. Could take a while.

also make sure ph meter is calibrated recently

the newest growth is looking better, since fixing high ppm it looks like.

give it time and make sure ppm and ph stays good. I used 700 ppm/1.3ec general purpose nute only start to finish in coco, works great

ph of medium is most important, otherwise nothing else works correctly
Click to expand...
The ph of the runoff when the ppm was high was 5.4 so it was a bit on the acidic side. I calibrate my ph pen weekly. Plant is doing better now well at least the new growth. The old leaves Are not in very good shape though.
 
jondamon

jondamon

Well-Known Member
BuddzKillington1015 said:
The ph of the runoff when the ppm was high was 5.4 so it was a bit on the acidic side. I calibrate my ph pen weekly. Plant is doing better now well at least the new growth. The old leaves Are not in very good shape though.
Click to expand...
You can’t test runoff pH with coco. It’s always going to come out fucked.

In order to test coco pH you need to take a sample of the coco, slurry it with distilled water, strain and test the pH (there’s a bit more to it than that)

concentrate on what’s going in and if you’ve been experiencing exceedingly High runoff ppm feed more frequently at lower ppm’s.
 
C

catdaddy516

Well-Known Member
What type of light do you have them under?
What are the temps and rh?
As someone stated already, back off the nutes. I would drop down to around 400ppms and I would ph around 6.4-6.5.
jondamon said:
You can’t test runoff pH with coco. It’s always going to come out fucked.

In order to test coco pH you need to take a sample of the coco, slurry it with distilled water, strain and test the pH (there’s a bit more to it than that)

concentrate on what’s going in and if you’ve been experiencing exceedingly High runoff ppm feed more frequently at lower ppm’s.
Click to expand...
I test my ph from runoff every time and I noticed any time my plants are not doing good, ph is always around the 5.4-5.5 range, so it's safe to say that testing ph in the runoff definitely counts for something.
 
jondamon

jondamon

Well-Known Member
catdaddy516 said:
What type of light do you have them under?
What are the temps and rh?
As someone stated already, back off the nutes. I would drop down to around 400ppms and I would ph around 6.4-6.5.

I test my ph from runoff every time and I noticed any time my plants are not doing good, ph is always around the 5.4-5.5 range, so it's safe to say that testing ph in the runoff definitely counts for something.
Click to expand...

It can count for something yes.

But it’s not accurately depicting what’s going on in the rootzone.

Much higher EC coming out in runoff is always going to have a lower pH because there are more salts present. (Same with fully hydro except that fully hydro uses completely inert media which means you can test return water pH)

higher salts = lower pH
Lower salts = higher pH

But if your rootzone pH was within 5.4-5.5 that’s still ok for uptake in coco as coco can uptake between 5.2-6.5 it’s just more optimal between 5.8-6.2.

so I guess you “could” test pH and track changes but it doesn’t mean it accurately correlates to what’s exactly going on in the medium.

i would hazard a guess and say if you performed a true slurry test for coco rootzone pH your 5.4-5.5 would probably be somewhere around 4.5 due to the fact of high salinity.
 
Rurumo

Rurumo

Well-Known Member
When you feed, are you feeding to plenty of runoff? There are only two causes for high ppms in a small pot of coco at that stage. One, the coco had a ton of salt in it to begin with-unlikely unless you bought some off brand brick. Two, you aren't watering to runoff. Start feeding at 400-500 ppm at 5.8 ph until you get around 30% runoff, that will flush out the extra salts and stabilize the PH.
 
simpleleaf

simpleleaf

Well-Known Member
BuddzKillington1015 said:
Day 18 on veg. Using canna coco nutes with Cali magic at 630 ppm. Run off was 1000 ppm but ran nutrient solution at 600 ppm and got it down to 650 ppm. Topped a couple days ago and I’m seeing issues with the leaves. Anyone experience these issues or know what it could be?
Click to expand...
In soil-containing potting mix (not coco), I get high salts in the runoff when I over water, specifically meaning not allowing sufficiently long drying intervals between irrigations.
 
You must log in or register to reply here.
Top