Nutes all depend on opinion, people say don't use miracle grows blue granules yet they worked fine for me.
6500 stands for the light temperature on the kelvin scale.
Changed lighting to 12/12, been watering with neem oil to kill fungus gnats, no successful results have come about yet, looking doubtful that it works for me.
But sexiness or what (19/11/2011):
Nothing I have ever grown has looked like this:
https://www.rollitup.org/attachments/indoor-growing/1890690d1321466412-1000-watt-blueberry-ice-cream-100_0297-1-.jpg
It looks like something out of this world, nice lol :D
I use normal reflectors, if the heat ever gets too hot I just use simple methods of cooling the room down, I.e; set up a fan in there. Personally I don't think it'd be worth it spending the extra cash on each light.
I haven't used many but try big bud, I got bigger buds with that than when I didn't use it, so yeah.
A few others recommend it as well, so it's worth a shot, not too expensive as well and you get quite a decent amount.