Artificial aquarium seaweed plants are made of eco-friendly non-toxic PVC material with a ceramic base, ensuring no water contamination and colorfastness. Soft texture prevents scratching fish, and the plants swing with water flow for a realistic appearance. Note: Plastic aquatic plants may be squeezed and deformed during packaging; submerging them in warm water (104 - 140°F) will restore their shape. Size: Artificial aquarium plants measure 1.4''L x 1''W x 12''H, suitable for larger aquariums including 30-gallon, 40-gallon, 50-gallon, or even larger fish tanks. Main color: Green. Note: To ensure the aquatic plants stand upright in the aquarium, maintain a water level above 14 inches and bury the base in gravel. Avoid placing plants near the aquarium's air outlet. These fish tank plants are suitable for both freshwater and seawater environments. Package includes: 10 pieces of artificial aquarium plants, ideal for aquarium and fish tank decoration.