400hps

Hello im new forum grower and im looking too grow big yield plants . Im growing under 400 hps i would like too know how long should i put my fem. seeds under the light till flowering stage, how and when too tip my plants and whats is the best ph / water period for a good grow. Also how many...

So, I started my first grow, i have a 400 watt hps bulb in a closet grow about 2m high by 1m squared. Ill be keeping this journal updated as I want to have a great yield more in quality than quantity, bieng said quantity is the second priority. Im using dutch growth formula for veg, and...