Turning into a mermaid?

I'm not sure exactly as it hasn't been released yet, but some others have been saying there is mermaid kelp that can turn existing sims into mermaids?

Yes you eat a special kelp to turn into a mermaid or just use cheats

If I’m remembering one of the Game Changer’s video correctly, there is a hidden rabbit hole place, a cave, I believe, that has the special kelp that turns humans into mermaids.

This is more fuzzy, but I thought I also heard there is a chance of finding this special kelp when picking up trash or collecting beach items.

There is a Mermandic kelp to eat (dunno proper spelling) that can be found in a cave thing or when digging in seaweed trash by beach. Or yeah cheat codes, and it's an instant transformation unlike vampire that takes time to turn

Thank you everyone!