The light in question, 300 watt Marsaqua. I bought this light because I didn't have the cash to throw at a good light, i.e radion, kessil etc. I could have probably gone the t5 route...oh well. I knew when I was doing my homework on this light that I would want to change out the leds that push this thing to far into the red end of the spectrum. The leds are stupid easy to replace and I can find just about anything in the spectrum inexpensively. Here's what it has: [FONT=&]Dimmer One:[/FONT] 14 x Cool White 12,000k 10 x Neutral White 7500k 10 x Warm White 3500k 4 x Red 660nm 4x Green 520nm 8 x Blue 460nm [FONT=&]Dimmer Two:[/FONT] 20 x Royal Blue 450nm 30 x Blue 460nm I was thinking of losing the reds, greens and warm whites, maybe the 7500Ks? What would you recommend in their places? 10-15K? UV? What would you recommend as an ideal spectrum? Thanks!