Mulberry leaves ( Morus spp. ) are used in terrariums to enrich bioactive soils, feed detritivores such as woodlice and springtails, and maintain humidity. They are also the exclusive diet of silkworms ( Bombyx mori ), essential for their growth and silk development. In aquariums, they release tannins and have antifungal and antibacterial properties, contributing to a healthy environment. Their moderate decomposition makes them a good choice for bioactive habitats.