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View Full Version : white stuff on tank with pics help


jlaudiofreak
03/17/2011, 08:26 PM
I just picked up a 40 gallon tank. The tank has a white stain look around the top half. I have soak the whole tank in 100% vinager and stain still there . I tried to scrap it with a razor blade and it took alittle bit off . Anyone have any Idea what this could be. Could it be harmful to my system

http://i637.photobucket.com/albums/uu94/jlaudiofreak/024.jpg
http://i637.photobucket.com/albums/uu94/jlaudiofreak/023.jpg

B-Willz
03/17/2011, 08:34 PM
looks like the salt etched the glass

jlaudiofreak
03/17/2011, 08:37 PM
what would cause the salt to do that

reeftivo
03/18/2011, 01:39 PM
carbonate build up. vinegar is too weak to work on it some times. get some drain cleaner (acid based H2so4) since it's not a running system and put on some rubber gloves and wet a cloth with it and wipe away. When it's off you can put some baking soda in water and wipe down any residual to neutralize the acid salts.

jlaudiofreak
03/19/2011, 06:49 PM
So will it hurt my system at all