Heavy 16 do I need to ph?

J

Jostaberry

Member
I’m using heavy 16 with coco. I was told I don’t need to adjust ph. But they also give an acceptable range of 5.5 to 6.5. I am 7 weeks into flower and haven’t tested the ph until I saw a little bit of what looks like nute burn. So I went and got a ph meter and tested the runnoff my runoff is coming out above 8. Is this normal what should it be the ph of the nutes after mixing is 6.7 and the runoff is over 8? Should I be ph my nutes down even though it says not to adjust it? So far I have been just following the Feed chart to a tee and haven’t seen any problems until now in week 7 of flower.
 
R

RonnieB2

Well-Known Member
Jostaberry said:
I’m using heavy 16 with coco. I was told I don’t need to adjust ph. But they also give an acceptable range of 5.5 to 6.5. I am 7 weeks into flower and haven’t tested the ph until I saw a little bit of what looks like nute burn. So I went and got a ph meter and tested the runnoff my runoff is coming out above 8. Is this normal what should it be the ph of the nutes after mixing is 6.7 and the runoff is over 8? Should I be ph my nutes down even though it says not to adjust it? So far I have been just following the Feed chart to a tee and haven’t seen any problems until now in week 7 of flower.
Click to expand...
Growgen.pro has heavy 16 products deeply discounted
 
S

spek9

Well-Known Member
Pictures speak a thousand words. Pictures with grow lights turned off speak 5,000.

Please post some.
 
Renfro

Renfro

Well-Known Member
So if youre feeding at 6.7 and runoff is at 8, then the pH in the root zone is likely even higher than the 8.

Grab a good bluelab soil pH pen. Checkout this thread:

Medium pH Correction (Soil and Coco)

Checking and adjusting the pH of your root zone in soil or coco is a very important part of growing healthy plants. Often you will notice nutrient deficiencies despite the fact you know you have provided an ample feed at an appropriate pH level. When this happens it’s generally either...
www.rollitup.org
 
J

Jostaberry

Member
Thank you all for the quick responses. Here are some pictures the first 3 are from the one that’s in week 7 first sign of anything. The next 4 photos are from one that’s in week 3 flower and seems to have been showing problems ever since I switched to flower. I included a picture of some lower fan leaves I pulled off.
 

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J

Jostaberry

Member
And I guess ultimately what I want to know is for people that use heavy 16 do you adjust ph?
I have tried searching for this answer and can’t find it anywhere. All I see is what the manufacturer says...
 
B

Bnugs

Active Member
Hey! I use heavy 16 and I have the answer! You have to ph if you only use the base line(veg A and B). If you have the Prime then you don't ph. The prime is the ph adjuster.
 

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