Glad to be helpful. If you can I would try to get either the Lif-glo by Hagen or the Flora-sun by Zoo-med. I have the Lif-glo and I like it vey much. It is a 6700k bulb and very pleasing to me. I have also been recomended the Zoomed bulb as being very close in appearence to the GE 9325(aquaray). As for a choice betwen the Aqua and Power glos I found the Power glo to have a warmer color and the Aqua glo to have more of a blue appearance. Subtle but there. Check out the thread in the lighting(I think) section titled 9325k. It has a nice foto comparison of a few color temb bulbs. While the exact color appearance might differ from brand to brand, you will get a general idea of how different K's look.