T5 spacing?

So I finally got me some T5s. I bought 4 3fOot tubes. I built a hood for them but I think I may have spaced them a lil too far. I have them 4inchs apart. Is that ok? Rite now the plants r growing in rows. The rows r in 4 inch spaces between the tubes. Should I bring þhe bulbs closer together or am I good to go?

you should be fine the premade ones are about 3" apart. are you useing the under cabinet style lights? if so Id add more cause they are not high output. If not where did you find 3'ers?

My hydro store has 4 3 and 2 foot sunblasters made by future harvest developements

Another question? R these better to root under then cfls and if so,can I root them under 18/6? I have a clone chamber with cfls on 24/7 that's full and the veg room contains moms under a 400 18/6 and for costs and personal reasons, ide like to keep my veg cycle on 18/6