Hopefully this works.
But I'm wondering,,,,,,,,,if it works as advertised and the crud goes away. Do you have to keep using it, in a maintenance dosage?
I have 4 frags for sale.
Bubble Gum Monster chalice
My Miami chalice
Not sure of the 3 rd name. It's pink and green with pink eyes
Chile Pepper/Seasons Greetings Monti. ( IMO they both look the same to me)
$50, pick up in Lacey
Picture of the mother colonies of 2.
aluminum doesn't rust. You can get a little corrosion, but that can be treated with stuff like a little light oil, or even paint.
I think there were a few guys in the north end that used raw aluminum above their tanks for light brackets and such.