Hey mate

Ive been using the canna classic range for a while and i can't be happier!
There top notch stuff, just make sure not to mix part a and part b together undiluted apparantly it can cause some issues.

I moved from the optimal range to canna and i've never looked back, i was getting wild PH fluxuations and was needing to adjust EVERY day in my old hydroponic system and CANNA does it all by itself it brings the water to very stable level from my terrible tap water (8.3ish :wtf

I can't say ive ever found any pitfalls though someone else might be able to help you out with that one :thumbsup:

As far as optimising what youve got going on really depends on the setup, medium and the strain involved because different strains can take more or less nutes without any issues :thumbsup:

All the best