Bleach?

[Kurt]

I didn't know vinegar could be used to remove mineral deposits. Thanks for the info.

[John]

Vinegar is acetic acid in water. Acid reacts with bases, and the mineral salts that cause limescale in tapwater are bases.

[Kurt]

Thanks again.

[Kerry1968]

I used salt as an abrasive to clean water marks on my tank, it worked really well. I didn't know you could use vinegar, thanks for the tip John!

[Tom Highum]

Hmm John is a wealth of knowledge again. Thanks this is helpful.

[Greatwtehunter]

A razor blade works well too for removing mineral deposits.