Baer Cobolt Blue. Still building tank, so no pictures with water in the tank.
IMG]http://i75.photobucket.com/albums/i305/arburnley/Fishtank%20Build/DSCN1371.jpg[/img]
Thats wgat I used, except my sump is glass and baffle acrylic.Just made sure it is100% silicone.No mildew repelents. Home Depot has it with the plexyglass.
I drilled the back pane of glass. But rather than drilling from outside of the tank to the indside, i started on the inside and ended up on the outside.
Funny thing. Some how I ended up with a chip on the inside. Out side turned out perfect. Something happened, because it was smooth and no chips when I was just about to break through.
I am currently running an Icecap ballast on my T5 and like it. I prefer a some what blue look.
http://www.marinedepot.com/lighting_metal_...rmation-ap.html
From this link I think I like the color of the Sunburst 1200k.