Is the substrate a type of mulch or what is that called? Now that my ducks have trampled the grass, I'm trying to decide what to use in hopes of helping them to stay clean. How often do you have to add more? Do you make it at home or purchase it?
Is the substrate a type of mulch or what is that called? Now that my ducks have trampled the grass, I'm trying to decide what to use in hopes of helping them to stay clean. How often do you have to add more? Do you make it at home or purchase it?
