I got this aquarium from someone who was no longer in the hobby. The tank was in REALLY bad shape with a TON of hard water stains, calcium & salt deposits. I have always used white vinegar to clean aquariums, but this time we decided to try Bar Keepers Friend.
You will watch a comparison video how both vinegar and Bar Keepers Friend clean the fish tank.
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![](https://s2.save4k.ru/pic/rUGePMZJFsE/maxresdefault.jpg)