well, literally a mixed bag.
Biogrow is varying extremely in acidity and ppm from one bottle to the next.
With exactly the same tap water with PH 8.0, the same amount of biogrow can lead to a PH of 5.7 to 7.4. and with ppm it's the same. Too much deveation for my or my plants taste. Shaking doesn't help much.
Don't know if it's the fault of my local supplyer or biobizz. The other products of this line seem stable to me.
Top Max just doesn't seem to make any difference. I don't think, I'l buy that again.
Acti Vera is hard to tell. Doesn't help the plant with pests like flies and other problems didn't occur. Maybe it helps maybe not.