What color to paint the bottom of my tank?

[Wheelman76]

When I had concept build my tank I had them put white vinyl on the bottom glass before they added the plywood. I think it looks great with the white and you don't have to look from the top down to see it , there is no reflection and I can see the white from across the room. It also reflects the light upwards and helps colour up the underside of corals. However once the coralline algae covers the bottom then it doesn't really matter what colour you go with.