SPORN Aquarium Decoration, Gassy Diver SAFE AND NON TOXIC: Made of Fish and Invertebrate safe material with hand painted colors that will not harm your fish. Crafted from premium quality resin material it won't fade or discolors while its use. Compatible with both saltwater and freshwater. Steady base ensures it wont flip over. RIGID AND STURDY: They are rigid with a heavy, sturdy base that won't flip over easily and hold the substrates in place. It has no nasty edges or corners  absolutely safe for fishes and other water creatures. THEORY OF ART: This elegant fish hideaway is handcrafted and hand-painted with natural colors. Hence colors with bubbles will adorn your aquarium with its natural and decent look. Air pump and tubing required to operate the bubbles are sold separately. FUN AND BEAUTIFUL: It features a diver out in search of treasure full of diamonds and golds on a beautiful coral rock. Works great as a decor piece for a mini fish tank, a fish bowl or even as a unique beautiful gift for an aquarium owner! MINIMUM MAINTENANCE: It's realistic, its sturdy and whats more? You won't have a hard time maintaining it. Just remove it from the package, rinse well under hot water and place it in the aquarium. Easy to clean it with hot water and fish tank dedicated plastic bristle brush.