Cloudy Glass

[fatboy8]

Just picked up a tank from my girlfriends friend and I've noticed that it has a few cloudy blotches on the glass. I've tried cleaning it a little bit tonight with lime away and scraping it off but it doesnt look like its working too well. When I put water on it, it seems to disappear until it dries. Anyone know what I can use to clean it?

 

[Lepisosteus]

Use a utility knife blade works great does not scratch just don't hit the silicone

 

[duanes]

I have a tank like that, I've tried razor blades, acids, just about everything I can think of.
The film/haze temporarily disappears when wet, but always comes back.

 

[Davis102613]

I've had that issue with SW tanks with salt residue, but have had luck with razor blades and water. Is it hard water residue since this is not saltwater?

 

[Oscar Mike]

If they're hard water stains u can try a 50/50 mixture of white vinegar and water. Add baking soda to make a paste, then coat the stains and let it sit for 10 mins to loosen the mineral deposits

 

[fatboy8]

I took a blade to it for around 30 minutes last night. Tried vinegar today and I've been able to get some of it off. Seems like I'll need to do that a few times


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