Description Josh’s Frogs Drainage Layer is for use in terrariums as the bottom layer of the enclosure, and it allows excess water to drain through the soil and prevent the plant roots from rotting. You will need enough material to create a 1/2 to 1 inch deep layer. For a 5 inch wide container, 1 cup of Josh’s Frogs Drainage Layer will make a 1 inch deep layer. Pebble Size: ~3/8- 3/4″
