hey, thanks for the kind words.
The fixtures I'm using are the Coralife T5 twin bulb fixtures. Coralife sells four bulb types for them: daylight, actinic, colormax, and plant.
I like the daylight and colormax combo for tanks that have a lot of orange and yellow fish. Ironically, on my 30 gallon, I just added a group of paracyprichromis, so I toned down the lighting by adding a single Hagen Aquaglo.
I was messing around with different bulbs in the past, and this is my basic approach now. Combos of two bulbs work best, but if I had to go with a single bulb, I choose an Aquaglo.
On my 125, I've got two 36 in. fixture spanning the tank with two Coralife daylight/actinic, and then one 36in. fixture positioned offcenter with a daylight and colormax. Makes it look like daylight is breaking through a section and leaves the sides a little dimmer.