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Anthrax15
10/04/2013, 10:56 PM
I have these weird markings on the inside of my glass that I stupidly didn't deal with before I put water in the tank. Before it was filled I tried a fresh razor blade and rub very light oil which I was told might work but it didn't. They aren't scratches and I can't see them from the inside. But they are an extreme eye soar and Im hoping someone can help!!

Sorry, its hard to get a good picture.

<a href="http://www.flickr.com/photos/anthrax15/10094529723/" title="Untitled by Anthrax15, on Flickr"><img src="http://farm3.staticflickr.com/2810/10094529723_939b572463.jpg" width="375" height="500" alt="Untitled"></a>

<a href="http://www.flickr.com/photos/anthrax15/10094561096/" title="Untitled by Anthrax15, on Flickr"><img src="http://farm6.staticflickr.com/5480/10094561096_9e74fd3448.jpg" width="500" height="375" alt="Untitled"></a>
Anthrax15
10/05/2013, 12:37 PM
Bump
Reefmedic79
10/05/2013, 02:22 PM
How old is the tank?

It looks similar to the hazing that acrylic gets, caused by stress on the panel most likely from the pressure of the water pushing out on the panels.
Anthrax15
10/05/2013, 05:37 PM
Not sure of the tank age. Its just to lines running vertical along the center of the front glass panel.
Eric45
10/06/2013, 09:16 AM
It looks like calcium precipitate that attaches to the fine glass scratches on the tank. How high do you keep your calcium?
Anthrax15
10/06/2013, 03:29 PM
It was there before I owned the tank
Megatrev62
10/06/2013, 03:37 PM
Very weird. Looks like major scratches from here.
Anthrax15
10/06/2013, 05:14 PM
I'm not talking about the scratches. I'm talking about the wierd markings that I can't seem to remove :/
1SlickFish
10/06/2013, 09:12 PM
Im no glassologist but I believe that to be a inherited flaw. I have seen that in some windshields and the only thing I can think of is while glass seems to be a solid, they also say it is a liquid (go figure) and that glass does move/melt/shift or whatever you call it. It has either molecular-ly sucked in and mixed with something that was previously in the tank or when they made the glass, they didnt have the mix uniform and it is molecular-ly shifting and bringing the flaw out.

New tank time!
Megatrev62
10/07/2013, 11:40 AM
Yes major flaw it seems. Looks like a waterfall of microbubbles. Sorry don't know what I'd do with that.