mojo;393752 wrote: I've had good luck with the Current USA ones. Nothing too fancy, the price is right, and they're extensible (not that you need that on the nano).
See http://www.marinedepot.com/lighting_moonlight_moon_lunar_lamp_current_usa-ap.html">this link</a>, although you can find them several places locally.
[IMG]http://www.f3images.com/IMD/aquarium_images/lighting_current_usa_lunar_moon_light_link_white_nocturnal_blue_reptilian_red.jpg alt="" />
Only con is that they're a little TOO bright for some tanks, but you can add a piece or two of scotch tape to tame it down some.