Whilst I wait for my wife's hardwood floor to be installed, I am planning out my new 210. In a recent life I used the Aqua Space light - 3 x 250 w DE MH + 4 actinic PC's. Looks like there has been a lot of change in lighting since then, so I have my eyes on LED's now. Hopefully cheaper to run + less heat. But would love to hear from the experts on what is really "good". Colour/Shimmer and of course growth. Thanks!