i never did, as i replaced my entire light setup 4 months into use.......current and powerpaq are good bulbs. you may want two actinic and 2 10000k or 6700k daylight lamps. the 10000k are a white color and the 6700 are a yellowish, similar to that of the sun outside.
Aquarium Lighting: Coralife Compact Fluorescent Straight Pin Bulbs
The 65watt straight pin Actinic 03's here are good,
and then just look into the color of daylight bulbs you want