if you are using plain pro mix then yes you will need to fert it otherwise your plants will come to a stand still and not grow until you do feed them because there is nothing really of nutritional value in normal pro mix. You can easily get more details searching the forums or reading "the simple noob instructions for growing the dankness" located in basic growing as a sticky.
michaelpeg Reviewed by michaelpeg on . New grower, questions about nitrogen Ok so everyones telling me to give me plants nitrogen to make them 'better'? my question is how do i give my plants nitrogen? this is my first year grow and i just have them in a closet under 24hr lighting Rating: 5