D 18 - Model Hollow Aquarium Rocks

About Aquadecor D18 Model - Hollow Aquarium Rocks: These non-floating hollow rocks do not require soaking or siliconing and can be moved, removed, and reused at any time. Simply fill them with water to keep them securely at the bottom and place them wherever you like in your aquarium. Please specify the size of your aquarium, and we will manufacture the rocks in the appropriate dimensions. You can also choose the rock color to match any of our background models.