Can I Use Outdoor Gravel or Rocks in an Aquarium?

The use of outdoor rocks or gravel in aquariums has long been debated, but it is usually safe provided you first test the stones for calcium content.

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Can I Use Outdoor Gravel or Rocks in an Aquarium?

Creative Fish Tank Rocks Ideas for a Stunning Aquarium

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How to Care for Your Saltwater or Freshwater Aquarium

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