While most influencers are plugging new crackers, sneakers, and energy drinks, Cassia Crawl is determining how many starfish out of five to give the latest pair of fish-scale tights that showed up in the mail. Outside of work as a social media manager, Cassia is Sia Shellz, a bonafide mermaid who adds an aquatic twist to every facet of her lifestyle. We caught up with her to learn about the nuances of squeezing into your tail, the mer-community in Toronto, and what life is like under the sea.