Mimosa pods , from trees of the genus Mimosa , are woody capsules that contain the seeds of the plant. Used in aquariums and terrariums, these pods are prized for their natural and decorative appearance. While not particularly rich in tannins, they can serve as hiding places for fish, shrimp, and other invertebrates, contributing to a more enriching environment. Mimos pods also add an aesthetic touch to aquariums and terrariums, mimicking the natural elements of their habitat.