How Much Gravel for a 30-Gallon Fish Tank?
Gravel is one of the more noticeable pieces of decor in many aquariums, and is important not only for capturing dirt and debris from the fish, but also for securing other decor like plants or aquarium furniture. For a 30-gallon tank, there is a formula you can use, along with a little common sense, to help determine exactly how much gravel you need.
