2 cups of substrate fills a 10 x 6 inches rectangular tank or a 7 inch diameter round tank to a depth of about 1/2 inch to 3/4 of an inch.This is the recommended depth of your substrate.
This is a great black, inert substrate for your Supershrimp. The red colors will pop out on the black background. The substrate comes pre-washed, so you can just drop it into your tank immediately and fill it with water without having to go through the tedious step of washing and rinsing it.
As every tank is different in size, we sell the substrate by the volume (cups). For substrate purposes only the length and the width (or diameter if the tank is round) of the tank are important, hence you cannot buy substrate to fit your tank using “gallons” as a guide.