Try an aquarium calculator to figure out just how much substrate, gravel, or sand you require

https://fish-tank-size-calculatorlgdr440.theburnward.com/ten-reasons-to-hate-people-who-can-t-be-disproved-aquarium-dimensions-calculator

Attempt an aquarium calculator to find out how much substrate, gravel, or sand you need. Get valuable quotes based on depth and tank measurements.