remove background

I have always been dissatisfied with the color of my Fluval M90s back wall. It looks to me like schedule 80 Gray but dull. I was thinking of cutting a piece of black acrylic to the same dimensions and cover it. Perhaps glue it to the existing or maybe just some nylon nuts and bolts or clamps...

Good Morning All. Recently we bought a used 350 gallons acrylic tank. It has 1" think acrylic panels. On the side & back, it has additional black acrylic panels (may be 1/8 inch). I would like to remove the side black acrylic panels so that we can see from the side also. I tried to sanding it...

What’s up y’all? Im new the R2R. I have a Red Sea 525XL that im currently building. This might not be the best category to put this post under but ‍♂️. Anyway, I have seen that a few people have removed the black background, pics attached (not mine, pulled off RedSea FB group) I want to do this...