1. Simulated sea urchin fish tank decoration adopts TPR material, safe and environment-friendly, healthy and non-toxic, the appearance is smooth and realistic, soft and elastic, and it can be matched at will. 2. The product is used for the first time, put in the fish tank for 2-3 days, replace the water, and then put it in water for 3-7 days before the fish can be put in. 3. Small code diameter of 7cm.
