From what it looks like in the pics, that tube floro is a t8, or is it something else? Regardless, the tube can be pretty much so close it's just shy of touching the plant. The cfl bulbs give off just a little bit more heat (cause they are compact) and can be like 2-3 inches away.
EDIT: I was more an outdoor grower till recently,(only indoors the last 2 years) but have done tons of research on indoor grows and lighting. Deffinately look at all the info you have gotten so far, and research it. There are quite a few stickies on very aspect, of every type of grow. Ranging from room set ups right up to harvesting, drying, curing, and even smoke reports of different strains. I wouldn't take anyone's word as an end all rule. Not even my own lol. Research all info you get, and choose what works best for your situation.