noot Posted February 28, 2012 Report Share Posted February 28, 2012 I have a used 90 gallon tank I am cleaning up and getting ready to start up. It has some white stains around the top of the tank that I can't get off. I have tried hot water and vinegar, but that doesn't seem to do a thing. Anyone know a good safe way to clean this stain off? Thanks Quote Link to comment Share on other sites More sharing options...
ckmullin Posted February 28, 2012 Report Share Posted February 28, 2012 Grab a razor blade and give that a go. Use a bit of tank water as a lubricant so it's not against dry glass. Always worked like a charm in the past. A razor blade is also a 100% sure fire fix for green spot on your aquarium glass ! The kind I use at gives a larger UNSHARP gripping area. Quote Link to comment Share on other sites More sharing options...
jvision Posted February 28, 2012 Report Share Posted February 28, 2012 If you can find some hydrochloric acid, that'll work. It's labeled as muric or muriatic acid at pool supply stores. I know people around here who've used CLR and gone on to breed hundreds of fish in those tanks. Just rinse really well. Quote Link to comment Share on other sites More sharing options...
Vallisneria Posted February 29, 2012 Report Share Posted February 29, 2012 I've used CLR a bunch of times to clean filters and tanks. Just make sure you really rinse it and its fine. But a razor blade is the best at getting that hard water ring off tanks. You can buy a little yellow paint scraper handle to hold the razor blade to make it easier to use. Quote Link to comment Share on other sites More sharing options...
Doc_Polit Posted February 29, 2012 Report Share Posted February 29, 2012 I have done this with great success: Soak paper shop towels with pickling vinegar Lay them on the affected area for 45-60 minutes Scrape with single edged razor blade Rinse well Good luck. Quote Link to comment Share on other sites More sharing options...
epiphany Posted February 29, 2012 Report Share Posted February 29, 2012 I have done this with great success: Soak paper shop towels with pickling vinegar Lay them on the affected area for 45-60 minutes Scrape with single edged razor blade Rinse well Good luck. Did this on a tank that I almost didn't even bother trying to save cause of how much dried algae and water deposits were on it when given the tank for free, after letting it soak I spend about 20-25 minutes going through it all with the razor and it looked new, just make sure you're careful around the silicone as you could unseal the tank. Quote Link to comment Share on other sites More sharing options...
creekbottom Posted March 24, 2012 Report Share Posted March 24, 2012 I just did the vinegar soak thing on some glass as well. Laid paper towel on the glass, soaked it with regular vinegar. I was intending to use a razor blade but got called away! When I came back several hours later the paper towel was dry, and the glass was really clean. I didn't bother scraping cause it was so good. Just rinsed and done! Quote Link to comment Share on other sites More sharing options...
ckmullin Posted March 24, 2012 Report Share Posted March 24, 2012 I just did the vinegar soak thing on some glass as well. Laid paper towel on the glass, soaked it with regular vinegar. I was intending to use a razor blade but got called away! When I came back several hours later the paper towel was dry, and the glass was really clean. I didn't bother scraping cause it was so good. Just rinsed and done! Very interesting...will have to remember this. One thing that also comes to mind put a piece of saran wrap over that area...it will keep it moist much longer. When I do strip woodwork, I use the plastic sheet method to keep the stripper moist for a longer period of time. Works like a charm, everything just peels off.. I use newspaper as it seems it has a bit more body than a paper towel. Quote Link to comment Share on other sites More sharing options...
Caprichoso Posted March 24, 2012 Report Share Posted March 24, 2012 Even if you can't get it all off, you probably won't notice it once the tank is filled with water. I bought a used tank and tried most of the above methods, scraped, scrubbed, soaked, and there was still a bit of a whitish film left. I can't see it at all when there is water in the tank. Quote Link to comment Share on other sites More sharing options...
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