Attempt an aquarium calculator to find out how much substrate, gravel, or sand you require

https://fish-tank-volume-calculatorzfax181.cloudhinter.com/posts/7-little-changes-that-ll-make-a-huge-difference-in-your-fish-tank-size-calculator

Try an aquarium calculator to determine how much substrate, gravel, or sand you require. Get practical estimates based upon depth and tank measurements.