Originally Posted by carey
That's my dilemma.
Does anyone else notice any loss of light not using a background? I want my corals to have as much of it as possible
The light in a tank reflects off the objects in the tank, then passes through the glass out into the room which is why you can see what's inside the tank.
I don't have a coral reef tank so I do not know how important ambient light is, or do your corals depend solely on the tank lights. If so then a background should make no difference as the corals are still getting the direct light from the fixtures.
Aquariums with backgrounds appear darker because the back glass light is blocked, but the internal light is the same, plus some of that light is actually reflected back into the tank, without a background, light from inside the tank just escapes out.
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