Attempt an aquarium calculator to find out just how much substrate, gravel, or sand you need
https://aquarium-calculator-gallonsbydm280.yousher.com/why-do-so-many-people-would-like-to-learn-more-about-aquarium-water-calculator
Try an aquarium calculator to determine just how much substrate, gravel, or sand you need. Get helpful quotes based upon depth and tank measurements.