Add some realism to you aquarium with the Penn Plax Log with Moss Aquarium Decor. This decoration is crafted with vivid color and detail and recreates a underwater setting fish will love. It"s made of fish-safe, non-toxic resin that"s great for saltwater and freshwater environments. * Made of high-quality resin * Designed for both fresh and salt water aquariums * Brings a natural and realistic appearance * Provides your fish with an obstacle to swim around * Dimensions: 13L x 6W x 9H in.