Display tank is a peninsula setup. The back wall is up against the sump closet. Original blue paint is flaking so Im removing it and debating on what to use for replacement. So far it looks like I should steer clear of black due to PAR absorption. So Im thinking match the existing medium blue (see photos above). Paint is easier than tint and most tint I see is cling on type and I doubt that will hold up. I also read about using plastic-dip which is interesting. Thoughts? 42"36" area