Why Is Pea Gravel The Best Gravel For Your Goldfish Tanks?

Updated November 2018 One of our readers recently asked about Pea Gravel, so I thought I’d take the time to explain what it is and why it’s good to have gravel in your tanks and aquariums. This type of pebble has rounded edges and the smallest pebbles have a size of around 4 millimeters. They …

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