experinced growers help

im growing in a closet and i have a 400w HPS sunsystem 5 what else do I need? I bought jorge carevantes ultimate grow dvd but havent got it yet.THANK PS it sucks bieng a amateur

Potstar, are you going dirt or Water Grow?
did you read up at GROW FAQ here?

Welcome to the forum. Start with reading some journals that talk about the same type of area you are considering using and what they have to say. Is your closet the same size as mine..... or?? Whats the planned size, L,W,H etc. With a 400 watt light in a closet you will also want to check out ventilation. You will need it. VV

White walls or mylar and ventillation comes to mind