If you can find a 10k bulb, or a 50/50 bulb, which will be 10k, and 03 actinic, you may like the look of the tank a bit better. Most find that a combination of 10k, and actinic, (ie. 50/50), have a crisper whiter look. Most people think the 6500k bulbs give off too yellow a light. Your corals...