Hey everyone, I've been out of the game for a while and wanted to inquire with regard to polishing glass. To be quite specific, it's actually polishing for a large aquarium tank for my girlfriend. There are some stains in the glass, ones that can't be removed by CLR or distilled white vinegar, so I was wondering if I should be polishing it any differently than what we usually do for paint. Any thoughts, suggestions, or questions? Thanks in advance!