Well, ATI makes good tubes. If you like a real blue look, you could go 3 Blue plus, and 1 coral plus, or if you like a little less blue, 2 Blue Plus, and 2 Coral Plus. If you were to add a strip of say 14 3 watt royal blue Cree, or Luxeon LEDs, you could go maybe 2 blue Plus, and 1 coral plus, and 1 purple plus. But it would help you if you could see something in person that you like, I think.