@e85GTX - I'd suggest at least two of the XHO's, although three would be better. Doing a white in the middle, and then a blue in the front and back would be a very nice looking setup.
@J23ames - The XHO is going to give you more blue overall, where the Illumilux would give you more of a shimmer effect. I"d suggest the XHO if you want color only.
Tank is 96 * 24 * 32
Currently lighting is three 400 watt MH. I would like supplement them with four 24 inch blue RB running front to back between and on end of the MH pendants. My canopy will not allow for a couple of 48 inch RB in the front. Should I go with the regular RB or the XHO?
On that length of tank and running with 400w MH's I'd definitely suggest using the XHO. I don't think you'll be happy with what you get from the standard Tech's combined with 400's. If you had 250's Id say go with the Tech's, but if you're really looking for punch and a really big difference when they're on I would do the XHO.
I am looking for an LED strip that I can use with my Tek Elite 48" 6 bulb fixture over my 55g. Looking for more pop/color from coral as well as some improved growth. Someone had told me I can put the 48" tech led right onto my Tek fixture. Is this true? Also looking for advice on what colors to get.