I've used the FF trio, plus calmag, quite successfully, the rest of the supplements are snake oil, IMHO (as are many of the numerous nute supplements). Follow the instructions for the media you're growing in and you'll be fine, if you want, start at half strength, then increase after you see how the plant handles it. The downside is you will need to do a 3X volume of the pot flush at least once, usually around flip/preflower, FF is a chelated fertilizer, so you need to flush the "salts" out of the soil.