the dirty formula is just that .... dirty . its formulated for soil & is a nasty mix in a rez ! it leaves all kinds of sediment in the bottom . best to mix & use as you need it in a 5 gallon bucket or the like .
the original formulas .... hard & soft versions can be used in/on any medium . hydro , coco & dirt . its a cleaner mix & is good in a drip fed system .
they're all pretty much PH stable .
the original formulas .... hard & soft versions can be used in/on any medium . hydro , coco & dirt . its a cleaner mix & is good in a drip fed system .
they're all pretty much PH stable .