Cloudy glass / mineral buildup / vinegar doesn't work - The Planted Tank Forum
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post #1 of 18 (permalink) Old 01-31-2013, 01:40 AM Thread Starter
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Cloudy glass / mineral buildup / vinegar doesn't work

My 110 tank has a glass brace in the center, was used when I got it. The brace is pretty cloudy with what looks like mineral buildup, and when I first got the tank I soaked and scrubbed with a razor it for a few days with no visible progress in clearing it up.

I've sort of lived with it to date but I notice the plants directly below the brace don't grow quite as much as the rest. Is there anything else I can try? I have some glass stovetop cleaner I might give a shot... Just need to figure out some way of preventing any from landing in my tank.
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post #2 of 18 (permalink) Old 01-31-2013, 03:19 AM
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another member reported some success with the Kaboom cleaner:
Hazy glass

I would imagine it would be near impossible for it to not end up in your tank, though
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post #3 of 18 (permalink) Old 01-31-2013, 04:09 AM
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Re: Cloudy glass / mineral buildup / vinegar doesn't work

Mr Clean scrubbers work really well to get some of that off. Add a little damp baking soda & it rocks! Gotta be careful not to scratch, but it'll polish it up nice

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post #4 of 18 (permalink) Old 01-31-2013, 08:38 AM Thread Starter
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Hm thanks. I think I'm going to lower the water level by about 40%, then use blue painters tape to tape up plastic painter's sheeting inside the tank (above water surface, hanging over edges of tank, taped to the outside) and double-tape all the seams around the brace...

after that precaution, I'll try using one of those magic erasers & some baking soda.
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post #5 of 18 (permalink) Old 01-31-2013, 09:06 AM
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I have a similar problem in a tank with some kind of etched blemishes all over the inside glass surfaces. One of the suggestions that I got for polishing them out was cerium oxide powder.
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post #6 of 18 (permalink) Old 02-02-2013, 12:58 AM
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Without any pix and assuming it's actually calcium buildup and not organic, I would tape off the water as you described and then wet a paper towel with muriatic acid (Lowes - $9 a gallon) and it should clean up lickity-split. I dunno about Kaboom or erasers on that stuff. I do know that muriatic acid will eat it right up!
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post #7 of 18 (permalink) Old 02-02-2013, 01:04 AM
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WOAH, muriatic acid. I have a 4oz left in a 128oz container. Always afraid to use it, but never thought of using it for this purpose. I need to educate myself on the proper use of this stuff so I don't end up on the news.

Good to know it's only $9/gallon. I need more to clean the brick wall once spring arrives.
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post #8 of 18 (permalink) Old 02-02-2013, 01:15 AM
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CLR Solution - (Calcium Lime & Rust) Remover.
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post #9 of 18 (permalink) Old 02-02-2013, 01:18 AM
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Quote:
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WOAH, muriatic acid. I have a 4oz left in a 128oz container. Always afraid to use it, but never thought of using it for this purpose. I need to educate myself on the proper use of this stuff so I don't end up on the news.

Good to know it's only $9/gallon. I need more to clean the brick wall once spring arrives.
You're going to hear all kinds of "YOU CRAY YO" baloney about using it. A modicum of common sense (don't sniff it - don't get it in your eyes - if you spill it wipe it up etc) you'll be fine. The stuff is used to lower the pH in swimming pools and "pH Down" aquarium treatments it's so "deadly".... I don't bother using gloves. If you have sensitive skin then do so. Otherwise use at your discretion.
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post #10 of 18 (permalink) Old 02-02-2013, 04:27 PM
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Quote:
Originally Posted by m00se View Post
You're going to hear all kinds of "YOU CRAY YO" baloney about using it. A modicum of common sense (don't sniff it - don't get it in your eyes - if you spill it wipe it up etc) you'll be fine. The stuff is used to lower the pH in swimming pools and "pH Down" aquarium treatments it's so "deadly".... I don't bother using gloves. If you have sensitive skin then do so. Otherwise use at your discretion.
I agree, most muriatic acid that you'll find at Lowes or HD isn't too concentrated, probably with a pH of around 4-5. However, if you used conc. HCl (i.e. 32% or above), then you'd definitely need gloves etc. as that stuff is pretty intense: a labmate of mine got some chemical burns from it not too long ago.
Just make sure you don't mix it with bleach.
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post #11 of 18 (permalink) Old 02-02-2013, 04:38 PM
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Oh I'm pretty darn sure it's lower than 4-5. The stuff at Lowes is 20% and buffered (I always wondered how they buffer something like that)..

Don't do a lot of things with it. Just use it as intended and while awake hopefully.

Cheers
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post #12 of 18 (permalink) Old 02-02-2013, 05:00 PM
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Re: Cloudy glass / mineral buildup / vinegar doesn't work

Just go buy a box of the original Mr. Clean magic erasers. There aren't any cleaners or solvents of any kind in them, so they can even be used in the tank with the fish and all.

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post #13 of 18 (permalink) Old 02-02-2013, 07:18 PM
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Re: Cloudy glass / mineral buildup / vinegar doesn't work

http://dealnews.com/Mr.-Clean-Magic-...ng/665320.html
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post #14 of 18 (permalink) Old 02-02-2013, 07:20 PM
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Re: Cloudy glass / mineral buildup / vinegar doesn't work

Quote:
Originally Posted by ShortFin View Post
CLR Solution - (Calcium Lime & Rust) Remover.
Only problem with CLR is that it has soap in it.
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post #15 of 18 (permalink) Old 02-02-2013, 11:12 PM
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Originally Posted by m00se View Post
Oh I'm pretty darn sure it's lower than 4-5. The stuff at Lowes is 20% and buffered (I always wondered how they buffer something like that)..

Don't do a lot of things with it. Just use it as intended and while awake hopefully.

Cheers
Oh, I didn't know that it was that concentrated.
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