T-Time
Well-Known Member
Not sure what that dark brown is. Gypsum is tan/white.
Maybe it's something that isn't exactly a nutrient salt? Do you run humic/fulvic acid maybe?
I'm using only 30% phosphoric acid in PH Down. Could that couse the problems ?
Its not a big one, ladies are growing strong anyway. I've installed extra pump to stir the nutriens thats on with the main pump, so that should be the fix for this particular issue.