so im starting a small grow op soon, next week or so. i will be using a small grow tent, the dimensions are 36"x20"x64". i will be growing 6-8 autoflowers. My question is how much light on top of my t5's will i need? i have a 2ft 4 tube t5 fixture with 6500k HO tubes. I also have 4 23w 2700k...