CalorMixs 10 Pcs Artificial Aquarium Fish Tank Water Plant Plastic Decoration Ornament (Random Color) Material: Durable, non-toxic plastic. Length: 80-125mm 3.15 -4.93 inch. Each plant has its own ceramic anchor base for holding it in the gravel bed. Offers the natural environment feeling and adds beauty and liveness to your fish tank. Safe for fish, they won't die, rot or cause any algae problems. To change your aquarium into a beautiful scenery.