Hi, Ponics101
I just got done with a grow roughly the same as yours with the 400 watt bulbs MH and HPS. On my second 1 now I had very little in the way of reflectant. Just some white 2 foot metal from doing vinyl work around the back. I could tell at harvest the lower buds in the back 2 were much bigger. I have just put up much more of the white metal and can tell they are starting to really take off. I have white on floor now too. I have 2 100 HPS that will be hanging on the sides and might get some flouros also. Add the mylar or white and get as much light as you can cool. Kepping it cool is important. You will harvest a good bit more. Keep us updated and we like to see the grow please. My thread is just down the page ( how's my girls looking? ) check it out. I know what you mean by not jumping in to deep but these are what bring in the good stuff. Now I'm trying more advanced nutes and vitamins. If Zandor gives you advice you can take it to the bank. He helped me more than he'll every know. I got my bud blood and big bud just waiting and GH 3 part nutes with cal-mag and B-52 also. Wife raised hell but it is better to ask forgiveness than to ask permission. LOL. Can you tell I'm burning 1 now, I'll shut up . LOL