The Mermaid Schools are schools that natural mermaids take in their respective pods. The school teaches the mermaids to use their powers properly and master new powers. When the mermaids graduate, they are given a Moon Ring and are initiated in the pod. The teachers are mermaids who have graduated and are experienced with their powers. Rita Santos was a brilliant student at Mermaid School and was the top of her class. She helped Nixie, Lyla and Sirena to master their powers, and gave them Moon Rings.
Mermaids are taught how to control the weather, levitate, use Moon Rings properly, navigate ocean currents, magic, and make potions. According to Sirena, mermaids can come and go from Mermaid School as they please. Hatchlings learn the basics such as Hydrokinesis. Eastern mermaids are taught the Turn the Tide spell when they are hatchlings.