Catappa Leaves offer significant benefits in both bioactive terrariums and aquariums. In terrariums, these leaves provide a natural substrate that enhances the aesthetic appeal while promoting a healthy ecosystem. As they decompose, Catappa Leaves release essential nutrients that support the growth of beneficial microorganisms and fungi, creating a sustainable environment for inhabitants such as isopods and other microfauna. In aquariums, Catappa Leaves have the added advantage of releasing tannins, which lower the pH and create a more natural, stress-reducing environment for fish and invertebrates. These tannins also possess antimicrobial properties that help prevent disease, contributing to the overall health and balance of the aquatic ecosystem.