Well the glass part. We were recently given this fish tank and it wasn’t exactly ‘clean’, so I’ve been wiping it down and cleaning it. What’s left is the glass part, and I’m guessing the water used before was hard, because there are splotches all over.

I tried glass cleaner to no avail, and I’m gonna try a white vinegar and water solution next, but is there anything else I should try? Anything is appreciated, thanks.