Yea man what you got is food grade 35 percent. they use it to clean resturant kitchens. I just can't get that unless I order off the net. 3 percent is from the pharmacy for using on cuts and scapes of the skin. Wish I had a place to get 35. Any way it sounds right but if you don't have slime on your roots I would go just a little bit light on the mix. If your roots have slime be aggressive it will not hurt them unless you put the whole bottle in there. I dosed them down heavy for my bro cause we had nothing to lose and now just about all 12 plants have nice white roots starting to hang down going for the water.