1.Aquarium plants plastic are made of plastic, without metal, is soft, and the plants in your tank are no fishy smell. 2. Aquarium plants plastic perfectly replicates the natural environment, and once you put it in the tank, you won't even be able to recognize that it's actually made of plastic. Your fish will enjoy the environment these plants provide and they can play and hide in it. 3.Because it's a brand new product that uses pigment coloring and is shipped sealed in small boxes. So there will be a slight smell. Thanks for your understanding. After washing and ventilating with warm water, the smell will disappear in a short time.