Ive just started using PV for flowering but I also mix a bunch of other products with it. I use an ebb&flood for flowering.
Here is my recipe (based on the technaflora recipe for success)...
Per 1 gal. (4 litres):
1/2 teaspoon (2.5 ml) Green Gold's Ocean Bloom 2-10-12
(all the rest is technaflora)
3 teaspoon (15 ml) PuraVida Grow 6-4-3
4 1/2 teaspoon (22.5 ml) PuraVida Bloom 2-6-6
1/2 teaspoon (2.5 ml) Thrive Alive B1 Green 1-1-1
1/2 teaspoon (2.5 ml) MagiCal 2-0-0
2 1/2 teaspoon (12.5 ml) Sugar Daddy 0-0-0
PPM = 1400
PH = 3.5 (with tap water which has a PH between 7-
I adjust to 5.5 with 2 1/2 ml potassium silicate
And for foliar feeding i mix the Thrive Alive B1 Green with Wet Betty (both are now register OMRI)
As for the recipe itself, I tried to be as organic as possible. I will be changing the Sugar Daddy for a more organic version. And from my understanding u can only get the calcium and magnesium right chemically (dont know if anyone knows of an organic source?). As for the Ocean Bloom and PuraVida they are not completely organic themselves... Ive been looking for an OMRI feeding recipe for hydro... but to no avail
As for adjusting ph and stuff, best try to stay in between 5.8 and 6.5 but you shouldnt have to adjust it too often or else check your PPMs (Ive burnt my plants once cause I just kept adjusting it with a bunch of PH- to the point of having a PPM of 1600)
Happy growing