This is my first time trying to grow hydro. I'm growing Lowlife auto AK47 x Auto Blueberry. I'm using a 400w HPS, a drip set up with a 4 gallon reservoir. I have GH nuts and PH up/down. My grow space is approx 4ft x 2 1/2 ft. I'm using the closet where the washer and dryer are suppose to be. I'm...