silica soil rhino skin

I am thinking of adding Rhino skin to my feed scheduled. I an a new grower and the advanced nutrients website says for master growers only, it also says to add to resIvor 2 hours before other nutes. My question is 1. if I use it should I water with it first wait 2 hours then add the remaining...

I am thinking of adding Rhino skin to my feed scheduled. I an a new grower and the advanced nutrients website says for master growers only, it also says to add to resIvor 2 hours before other nutes. My question is 1. if I use it should I water with it first wait 2 hours then add the remaining...