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  1. Beginner Freshwater Aquarium
    I just bought a 75 gallon tank used off of craigslist. When I got home I noticed the aquarium glass was really cloudy. It had white stains on all four sides of the glass. I got my aquarium sponge and some warm water and started cleaning it and it appeared to all come off and be clear, once a...
  2. Beginner Freshwater Aquarium
    I recently purchased a used 20g tank. The owner previously had a turtle in the tank, so it was filled halfway with water. Everything above that halfway water line has hard calcium deposits. So far I've tried using vinegar (5% acidity) and a razor blade but haven't made much progress. What...
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