DescriptionBefore putting these decorations in the fish tank, better wash them with water or soak the decorations into salt water for a while. The best way is to wash the decorations and soak them into the water inside the fish tank for about 2 days. The glow decorations are contains safe ingredients, but the changing of the aquarium environment may cause the fish to get sick. So after putting the decorations, try to keep the PH value and temperature of the fish tank consistent with the previous.Features- Material: Resin. - Size: About 6.00X6.00X17.00cm/2.36X2.36X6.68inch. - Lifelike ornaments, realistic and luminous design with fine workmanship, essential for fish tank landscape. - Made of premium resin material for durable and practical use. - It is suitable for sea water, fresh water and other environments. Fish can freely shuttle among the water plants, which is eye-catching. - Suitable for both fresh and salt water, safe and easy for daily washing. - The simulation water plant has the advantages of no deformation, no fading, suitable for landscaping and decorating in the aquarium.