Hey man, I always come into growing my plants at half strength or even quarter strength of what the "Chart Says". Each plant has it's own wants and needs; therefore, I always consider the size of the plants root system before increasing the amount of nutrients. Always take it easy coming into your grow, and wait to increase by studying how your plant responds to the concentration of mix in your reservoir. Providing minimal nutrients at first will allow your plant to develop under a low EC/PPM. I always use Reverse Osmosis water as well because this brings the amount of EC/PPM to pretty much zero before you even mix any of your nutrients in. After mixing up your quarter or half strength from what the chart says start taking measurements with a ppm reader. This will help you understand how your plant responds at different concentration levels. Basically add minimal nutrients when she's young and build her up slowly.. Peace man