When considering the addition of animals or insects to your terrarium, it’s essential to research insect compatibility and animal safety within the enclosed environment. Many small creatures can coexist safely in a terrarium, such as springtails, isopods, and certain types of snails. These critters not only add interest but also contribute to a more dynamic ecosystem by breaking down plant debris and aiding in nutrient cycling. However, be cautious about introducing larger animals like reptiles or amphibians without proper research on their specific habitat requirements and potential impact on other inhabitants. By carefully selecting compatible species that serve a purpose within the terrarium system, you’ll create a thriving microhabitat while fulfilling your desire to nurture and support all living beings within it.