Yup 91% rubbing alcohal and Kosher salt is the best thing I have ever used to scrub my pipes. I don't use anyting metel on them the glass breaks easy but the brushes from the fish store work just fine. Pipe cleaners work well too, yes they have a small amount of metal in them but as a rule I try not to scratch the glass with them.

Good advice in this thread I hope everyone learns someting.