T5's are all I have any experience with but I'm thinking about switching to 250W Radiums. I have a 60x24x25 Oceanic 156 with no center brace. I'm thinking two MH's with actinic supplementation. The top of my canopy is about 12" from the water. Should I get Lumateck/Lumenbrite's and cut holes in the top of the canopy and mount them there (won't be popular with the wife) or will spider reflectors or something else work mounted inside my canopy? I'm switching because I'm tired of pale corals.