[Dez]

I will have my 400's at 6inches. But even if your fluorescents pass at both ends of the bulbs, they are lower than the bulbs so it will definitely create a shadow because the light from the halides shoulds spread toward the front of your tank and the back, but with the fluorescents lower, they will creat a shadow, but the human eye will not notice it.

I'm wondering if you have an open top meaning "do you have any glass lids on top of your tank?" or do your have your lights directly over the water?

Do you have to wipe off salt creep much in your canopy?

Thanks Stephane

Des