Just like I started the thread out.... ran out of Hydroguard, a product that I have used for a long time. I needed a replacement for reservoir treatment and the hydro store owner told me Hygrozyme was good stuff and that Hydroguard is no longer made.
Had beautiful white roots and green foliage on my girls before I changed out the reservoirs and treated them with Hygrozyme. Then slimy, smelly roots with nutrient lockout happened and lost 8 girls total now.
I'll get something else as a treatment... but not Hygrozyme.
Do you believe that there was any possible way that the left over hydroguard might of interacted with the Hygrozyme?