I was reading through this thread and see you've used CNS17... what did you think? I'm thinking of trying itCNS17.
I like it OK. I have only done the 1 grow using CNS17.
My problem is; I make my own nutrients for my greenhouse 1000 liters at a time. I generally use this for soil grows.
For hydro; I am a big fan of Dutchmaster Advance A and B, plus Max, Zone, abd Silica added.
My next hydro grow is going to be using Marijuana Booster, by Robert Bergmann, Amsterdam. I just got my package with all 3 parts. It is a 1 part for 3 different periods of the growing phase.