Originally Posted by
GreenReefer
http:///forum/post/3112682
It looks like the overflowbar blocks most ofvthe light from the back wall. Is the photo misleading or is that really the case?
Miss leading. Notice the tops of the rock out croppings all the way down the wall...the light looks like its hitting them with great intensity..but 1/2"lower and its suddenly in the shadows.
The lights actually off set towards the center of the tank and pointing straight down. The overflow sits about 1" away from the back of the foam wall. Dont get me wrong, it is creating a visible difference in light intensity, but that is the camera making look it worse. And byt he time the corals grow out and towards the center of the tank, they will get a nice beam directly onto them.
These are 250wx3 at 19" of water depth, and 10" above the surface, the light penetrates all the way. If I can get away with it...Ill move the lights closer...and slightly more fore ward and angled back towards the wall.
However, my next project will be a tower overflow in one single corner...or a single column in the middle, with the foam wall built onto it. The over flow bar was a novel idea for surface skimming, but I think it will make little difference over all when you look at my system as a whole. I can keep my system clean by other means than just surface skimming.