I know I'm late, but I recommended hygrozyne because it does as advertised. And on top of that it will rid the soil of excess salts. And then I would recommend a flush, with a very light feeding. As far as hygrozyme, you get what you pay for. In my case having had cannazyme, sensizyme n hygrozyme at the same time I have seen it work better in person.
if you have the products take some dead roots from wherever and get three cups or something put riots in each one and add the enzyme products, by the next day the dead roots will be gone, but not the same with the other two. Even seen it done w/ paper towels.
btw I'm on my celly, I'm in my new spot didn't get to bless the apartment with a blunt yesterday hopefully soon. I still didn't get the net and cable turned on here yet.