uh, lots of backgrounds are internal....
Here is what I would do.....take and wad it up and throw it in the garbage.... Then go buy a can of Krylon black spraypaint....mask off around the edges and then spray it with 3-4 coats until you cant see any light spots when you look at it ...then call it done and enjoy your new gourgous black background![]()
That is a pretty cool idea, I might try it on my next tank.