What do you guys use to remove mineral stains/residue from tank glass?

[oblivion]

Hi guys,

any recommendations on any solution or equipment that can be used to remove those stubborn whitish mineral stains/residue from the tank glass?

i've got a nice whitish line all around the tank at the waterline area

[Shadow]

vinegar, it does work but you need to soak it. For big tank I ussualy using paper towel, soak in in vinegar, stick it on the glass surface and wrap it with cling wrap. All clean the next day.

[oblivion]

thanks robert!
i presume its white vinegar right?

[Shadow]

year forgot to mention

[oblivion]

i just tried
it works to a certain extent but i was hoping for something stronger
some very stubborn ones still refuse to come off
any other chemicals to recommend?
or should i leave the vinegar on overnight?

[aquarius]

I noticed that my tangan tank which i use alot of sodium bicarbonate which i bought from NA causes very serious mineral stains. I've used AquaMedic brand of KH-up before and they don't cause such bad staining. Maybe it's due to the impurities.

[oblivion]

i was wondering if theres any acidic kind of solution we can get at pharmacies to clean the stains off

or does ada superge work?

[Shadow]

how about using ph minus? just wild guess

[sunnydaze]

I use 3% H2O2.

[Shadow]

H2O2 does it work? it is good for organic mater but mineral stains?

[sunnydaze]

Its basically acid, but safe as it'll breaks down into H2O+O2. So, no worries if it gets into the water. For a 100l tank I used up to 30ml at 1 application. Well, they will for sure get into the water unless you are using on an empty tank.

[Shadow]

Did some searching on the web, H2O2 is weak acid, 3% H2O2 pH probably around 6.5 on the other hand white vinegar contain 5% acetic acid and have pH of about 2.4.

Never measure it, so I might be wrong

http://www.apple-cider-vinegar-benef...f-vinegar.html
http://www.h2o2.com/intro/faq.html#15

[cheetf]

Maybe you can try the melamine sponges from Daiso. Works well for me.