Saltwater converting to Freshwater

sillymikey

Cheesehead
Feb 19, 2003
19
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Madison, Wisconsin
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Hello,
Sorry if I sound ignorant in asking this. Over the past year I had 35 gallon salt water tank with live rock and a few fish, and over that time, ALL of the fish died, and I decided to switch over to freshwater because Its a lot less hassle.
My question is, when I was cleaning my tank out yesterday, I noticed that I have like a salt build up around the top parts of the glass on the tank, and no matter how hard I scrubbed (using a new dishsponge) I couldnt get it out. I know that Im not supposed to use any chemicals or soap in cleaning a tank, but is there anything you can suggest to get rid of the filmy layer or salt?
Any help would be appreciated. THANKS!
 
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