Tank Cleaning Help?!?

[Loureed]

I purchased two tanks off Craigslist and they have a gross white film covering the inner glass. I tries using aquarium safe wipes and hot water, but to no avail. Any ideas or thoughts would be helpful, thanks so much!

 

[christine2012]

Try white vinegar!

 

[butterfly_koi]

Vinegar and a razor blade works the best

 

[Loureed]

I will try vinegar and report back! Thanks you guys!

 

[Loureed]

Vinegar worked amazing! Thanks guys!