Penn-Plax presents the Gray and Green Aquascape Aquarium Decoration. Before placing into your tank, or as you as perform regular cleaning and maintenance, simply wipe down and rinse off the decoration with warm water. Never use soap, as the residual soap particles can harm your fish. It’s great as an individual decoration or combine with others. Shop Penn-Plax for All Your Pet’s Needs: Penn-Plax is a manufacturer and distributor of top quality pet supplies, who specialize in creating excellent pet products for animals, both great and small.