The miracle grow perlite DOES have nutes in it, but the count on the back is so minuscule it shouldn't cause that much of a swing. I use it every run without every having a problem caused by it.
It looks like you're getting an N lockout due to low pH, bro.
Soil is soil is soil, pH range for soil is 6.5, always has been and always will be a good target pH.
Did you add lime to your mix? Promix is a great start being well-produced and mostly sterile (ie. no bugs) but it needs a lil amending to reach its potential.
6-2-2 will give you green plants, every time. 6 parts promix, 2 parts perlite and 2 parts EWCs. Once i switched to this method the problem were few and far in between!!!
I also have some experience with the floranova, it's a good stand alone but sometimes, with certain strains, requires a lil cal-mag suppliment. NOTE*** If you use powdered lime in your mix this is just like amending the soil with cal/mag.
- SubN
It looks like you're getting an N lockout due to low pH, bro.
Soil is soil is soil, pH range for soil is 6.5, always has been and always will be a good target pH.
Did you add lime to your mix? Promix is a great start being well-produced and mostly sterile (ie. no bugs) but it needs a lil amending to reach its potential.
6-2-2 will give you green plants, every time. 6 parts promix, 2 parts perlite and 2 parts EWCs. Once i switched to this method the problem were few and far in between!!!
I also have some experience with the floranova, it's a good stand alone but sometimes, with certain strains, requires a lil cal-mag suppliment. NOTE*** If you use powdered lime in your mix this is just like amending the soil with cal/mag.
- SubN