Aquatic Creations Aquarium Decoration &ndash; Landscape Wall Fish Tank Substrate Separator Ornament for Freshwater and Saltwater, Easy Set Up, Sturdy Aquarium Terrace SAFE AND NON TOXIC: Made of safe resin material with hand painted colors. Crafted from premium quality material it won't fade, decay or discolor in Fish Tank. Compatible with both saltwater and freshwater. 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. AQUASCAPE YOUR TANK: Works great to terrace sand and gravel or different colored sand, create a beautiful plant area in your tank, elevate the landscape, create plateaued areas and much more. DETAILED AND REALSITIC: It has exquisite detailing and carving that enables a realistic look. Fishes feel and look just natural while swimming around them. They are versatile enough to complement any themed fish tank decor. Rough and uneven surface allows space for essential bacteria to grow. 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.