From what I can see No Cococ loco do not buffer there Coco. Next grow you should buffer your coco k
Like this.
I'm looking at your plants very light green colour. This tells me you have been feeding very light.
Please take a little time to watch this video on calculating fertilizer parts per million Nitrogen.
7-9-5 for Seedlings and Veg
Seedlings calculate around 250 ppm N.
After 2 or 3 weeks, calculate 400 PPM N.
As the plant gets larger it may require more N. It will show you buy yellowing lower leaves. If your plants are a nice healthy lime green colour.
Then you notice yellowing lower leaves, simply increase your N PPM buy 100 ppm and continue.
Please check out Coco for Cannabis. Then come back.
See this part on
Plants Grow Best Under High-Frequency Fertigation
Learn how to unlock the magic of growing cannabis in coco coir with high frequency fertigation! Guide to feed and water cannabis in coco like a pro!
www.cocoforcannabis.com
I find watering to +25% every other day works fine. Hope this helps you.
I find after week 3 of flower. I calculate my blooming fertilizer 100 PPM N to 150 PPM N.
This should also work great for your 3-12-6 when flowering. Don't worry if the plant takes on fall colors and drops leaves she is supposed to do that.
Ron