how to remove either salt or calcium deposits from tile?

Daddyrawg

Member
so my fish tank sits on tile. after numerous water changes and spillage my tiles have develop some sort of stains im thinking either calcium deposits or whatver salt does to tile.. any advise out there on removing these stains?
 

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If that doesn't work you can try muriatic acid, sold in pool supply stores. Be very careful though, you need eye and skin protection, and you have to dilute it in water at least 4-1, and afterwards rinse with water very well.
 
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