Novus Plastic

How to take off hard water stain on plastic (fish tank)?

The rim of the tank and the lid have hard water stains.
I try to scrub it off but it's impossible and for the lid, i try to use vinegar but it only did a little good.

Is there anything i can use to clean it?

Anything plastic/acrylic use Novus! Great stuff, it will even clean/repair CDs and DVDs. Many automotive places will carry it, music stores, fish stores, etc.

http://www.amazon.com/Novus-Plastic-Polish-Scratch-Remover/dp/B001J7EVCQ

I just love this stuff.

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Novus Plastic Polish Buffing Kit
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NOVUS 7100 Plastic Polish Kit 8 oz
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Novus Polish Kit Plastic and Acrylic Cleaner Polish Scratch Remover 8oz Eyeglass
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NOVUS PC 10 Plastic Clean Shine 8 oz Free 2 Day Shipping
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NOVUS 7100 Plastic Polish Kit 8 oz
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Novus Polish Kit Plastic and Acrylic Cleaner Polish Scratch Remover 8oz Eyeglass
Novus Polish Kit Plastic and Acrylic Cleaner Polish Scratch Remover 8oz Eyeglass
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