I'm old and can't remember if you're growing in soil or coco (hell, what's my name again?). If soil I wouldn't use much if any
calmag. Careful.
It’s weird plumber I never used it before.
About eight years gorilla growing and 3-4 years high pressure sodium . I’ve done 4 grows led now as circumstances are difficult would have been more prolific as before.
I like to understand things and they need more calcium under these lights (my ones anyway). Have played with tweaking it and although might not be sweet spot, it’s visibly better.
Every time they have not had it in feed every couple of feeds I get cal deficiency. I’ve grown much more with hps.
If you need an indicator of how much it’s I was aiming for total organic grow.
But couldn’t see my girls living with rickets, there is now organic calcium additive so if I can justify it with all nutrients I have I will try.
My roses love the cal mag anyway it’s like little shop of horrors though “feed me Seymour “
But they return the favour