The fish tanks landscape is resin and is designed to be landscape with noctilucence,need to be absorb light of daytimes. The resin is and harmless, does notfade or change color whensoaked in water, and does not affect the pHvalue of the water. The fishtanks landscape is suitable for people who have fish tanks or aquariums and want to decorate . The aquariums decor can be used as a decoration in fish tanks or aquariums, providing a and colorfulimage without the water. Package includes: 1x Fish Tanks Landscaping Resin Decoration