I grow in soilless mix with much added perlite. a sort of hydro hybid I guess. I currently use GH flora series, with occasional fulvic acid, kelp extract, and bud blood. What I'm learning is that there is precious little information about growing this way. What I did to save my ass is buy a cheap PPM meter on ebay. Now mix up your shit till it looks nice and good to you, pick a comfortable ppm number diluting as necessary. Without the meter you'll never know what you're doing, you're guaranteed to overdose. My tap water is around 180 ppm. I add nutes till about 500 ppm. Don't worry too much about the ratios, you're bound to get all the NPK and micro nutrients you need. I water thoroughly when dry and suck the excess out of the drip pan with a turkey baster preventing salt buildup.
Beware of those claiming their strains can take high EC levels. They're talking to experienced and well equipped hydro growers. Even my 500 PPM level is experimental and risky. As your pots dry out, the PPM rises and so does the salt burn. So far, I'm having good luck at this PPM level and don't intend to increase it..