I have been disappointed w/ coralife bulbs. They make the tank look dark and are expensive. I personally link them to a few other tank problems I have had in the past. You will get the results you want with colors popping out though.

SPS bulbs are a light blue. I had better growth with them (wasn't using a MH), but lack any color popping.

Odyssea seem to have a slight green tint. They have give a much better color contrast to the zoo's and lps. But the green tint sucks.

Current: I have been to afraid to try them.

In the future I will be experimenting with mixing the bulbs vs. using 1 brand. I would recommend the same.