JBL ProTerra Calcium Powder is a mineral supplementary food for all reptiles. Minerals have various functions in terrarium animals: Firstly they are an essential part of the diet and are needed for healthy shell formation in turtles. In lizards, they are elementary for a healthy moult. Secondly they prevent mineral deficiency diseases that can occur with an unbalanced diet or when older food is fed. Young animals need significantly more minerals than adults during the growth phase. Calcium is the most important element among the minerals needed by terrarium animals for a healthy diet!JBL ProTerra Calcium Powder+ especially for the needs of reptiles: supplementary food for an optimal calcium supply+ for healthy terrarium animals+ easy to use: put feeder insects in a container, sprinkle over the feeder insects with a dosing spoon, shake the container until the calcium powder adheres to the feeder animal+ particularly suitable for sprinkling on live feeder insects, but also for sprinkling