Okay, so this is where i get confused! What's the difference between a half mermaid and a real mermaid anyway? I decided that half mermaids mean that only your legs stick together. Half mermaids are definitely that most common! Real mermaids are when you actually have a tail! I, honestly, REALLY REALLY REALLY want to be a real mermaid so bad!!! But hey, i can't do spells and potions because i'm christian and christian's believe that spells and potions are bad. I wish i could though!