How to remove water lines

[adam1993]

Hi all, I’ve bought a second hand tank, my dream tank and it’s cleaned up great but the top of the tank has a dirty waterline how can I clean this off ????

 

[Peace River]

Can you share a picture? Is the water line on glass, plastic, or other? Sometimes you can use vinegar or baking soda paste and other times you need something more agressive like a hard water stain remover. Do your best to keep any cleaners out of the inside of the aquarium. Good luck!

 

[adam1993]

On the inside of the tank

 

[adam1993]

Glass and on the inside of the tank

 

[Peace River]

Here is a link to a comparable thread on R2R:
https://www.reef2reef.com/threads/getting-rid-of-water-line.742040/

 

[adam1993]

So I’ve tried hot water, vinegar, lemon juice any other ideas ??