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. Middle code diameter of 10cm.