Considering switching to t5

[Mik_101]

As the tittle says I am in consideration of witchin to t5 on my 46 g sps tank. A bit about the system it 46g with a sump with about 15 g of water. I am using the zeovit system witch has given me extrodanery results. The main reason that I would like to switch to t5 from metal halides is because 1-less heat, 2-IME nicer colors and 3-the look of the fixturs is more sleek looking than DIY halides hood with 2 t5. I have a few questions about t5's.

1-for my tank system how many bulbs should I go with 4,6,8?
2-will my growth plumit or go up?
3-advantages and disitvantages of t5's?
4-how long should they be on daily?
5-will I lose color?
6-do all the bulbs go on and off at the same time?
7-witch is the best fixture.
8-witch bulbs to use/configuration?(aquablue...)

the ones I am considering are the following few.

http://www.jlaquatics.com/phpstore/s...ID=sl-t5tl3606

http://oceanaquatics.com/store/produ...eme-Pro-36%22/

(if it comes in 36")http://oceanaquatics.com/store/produ...-48%22-8-lamp/

(if 4 is sufficent)http://oceanaquatics.com/store/produ...36%22---4x39w/

Thanks,
Miki