MERMAID ESSENTIALS: What do you need to be a professional mermaid? If you own a silicone mermaid tail or plan on owning one, you NEED to read this! This blog post will help you gather all of the things that you need in order to run your business as a professional mermaid smoothly. This will be especially helpful to those of you who own a silicone mermaid tail, although some materials are a must-have for everymer!