Try an aquarium calculator to find out how much substrate, gravel, or sand you need

https://aquarium-size-calculatorjxqz620.image-perth.org/the-people-closest-to-5-gallon-fish-tank-in-litres-have-big-secrets-to-share

Attempt an aquarium calculator to figure out just how much substrate, gravel, or sand you need. Get practical quotes based upon depth and tank measurements.