Hey daddy
@Waira !
Still waiting for your LBH fems, huh? I guess he's on full grow-mode right now, haven't seen him around for a while.
That leaf curl is minor, and hasn't continued. I know coco is a Ca / cation hog.
This is cheap coco bricks, brought locally, but actually from Sri Lanka.
It's still the best quality I can get here, with lowest EC and stable pH.
I flush the hell out of it when I re-hydrate, using cloth bags.
Then give a 24 hr buffer soak with high Ca/Mg hydro A+B (Peters/Jacks) solution at around 1000 ppm.
That's 1000 ppm total, I figure around 300 ppm of that is Ca/Mg.
Then flush that all out, too. This time I added a bit of fine dolomite lime to this buffering solution.
Now, when I'm mixing this up for outdoors, with low pH rainwater -- down to 5.3,
I'm also adding in the fine dolomite lime, and have high Ca chicken poop fertilizer.
Also have some kelp meal / powder in there, which provides aminos, maybe help chelate the Ca++/Mg++??
Maybe I will just have to spend the money for some better Ca/Mg source, as I want to continue using this coco.