How much gravel should you put in a 14 gallon aquarium please?

For a 14-gallon aquarium, you will need approximately 14.4 pounds of gravel. This is based on the rule of thumb that you should use about 1 pound of gravel per gallon of water.

However, the actual amount of gravel you need may vary depending on the type of gravel you choose and the desired depth of the substrate. For example, if you are using a smaller gravel size, you will need more than 14.4 pounds to achieve the same depth.