Seru Pods provide a natural visual interest within a tank, but can also be used for various functional purposes within your bioactive terrarium or aquarium such as:
Deposit site for dart frog tadpoles/water holes
Naturalistic hide for small invertebrates, amphibians and geckos
Etc.
Seru Pods average 3-4" in diameter. However, due to the nature of this product there will be natural variation in size and color of each pod.