peat panels hobby

those would be called "peat plates" or "peat panels." They are used as the first layer in aquariums or on the walls of terrariums for planting orchids, bromeliads, and other tropical plants. They slightly acidify the water and prevent the formation of algae. When used instead of substrate for raising small animals such as tropical frogs, phelsumas, crabs, they are typically referred to as "peat plates" or "peat panels" as well.