How to stop salt creep

[Reef.Blue]

Hey guys. I currently have an air pump in my 10g quarantine tank and the bubbles from the air stone are making a lot of salt creep on the top and sides of my tank. I tried to lower the bubble rate, but it still is not working. How do I get rid of this? Thanks!

 

[Reefer Reboot]

Float a piece of this type foam where the bubbles pop.

 

[Reef.Blue]

Float a piece of this type foam where the bubbles pop.

Thank you!