Casuarina cones create a dynamic microhabitat within bioactive enclosures, offering isopods and springtails essential shelter while simultaneously functioning as a slow-release nutrient source. As these decomposers colonize and break down the cone's fibrous structure, they release organic matter back into the substrate, enriching it naturally. The irregular surface and hollow chambers encourage instinctive foraging and exploration, promoting the behavioral complexity that thriving cleanup crews require. An elegant addition to any bioactive setup seeking both ecological function and aesthetic depth.