Aquarium rocks are for mostly to dress up your fish tank. While aquarium caves and rocks are great decorations, they have another function as well. They provide the perfect shelter for your fish to hide under. As with anything you put in your tank there are some things to take note of before picking out your aquarium rocks. You want to choose rocks that are inert, and do not affect the chemical balance of your tank. Because of this, it’s best to avoid putting rocks in your tank that you just find outside. Rocks purchased from aquarium retailers should be well labeled so you know what you are getting. Take a look at the list below to help you as well.
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Decoration