I'm working on a project for our biology class, and I understand that we need to have several layers on the bottom of the enclosure, including Hydroton, charcoal, and organic soil. What I'm wondering is, what do we need to do with the charcoal layer? Should it be crushed up or not, and is...
I am in a serious pickle. My friends and I are doing a habitat for a science class.We have found several great habitats on this site. People have written about what to use on the floor of the habitats, but I really need to know what kind of plants to use. Does anyone have suggestions. We have a...