Deepdwellers

Not sure if it's a headcanon that I specifically believe myself, since I'm pretty sure there's a million reasons why this can't actually be a thing, canonwise. But I think it would be really cool.

It was heavily inspired by anglerfish.
Copy/Pasted from my tumblr [link]

In my headcanon (likely Jossed multiple times by canon) There are trolls in between Feferi and Aradia with magenta blood who live way deep in the ocean. The reason Feferi is seen as the highest a troll can go is because deep sea trolls are so violent and feral, they aren’t even considered trolls. (Fridge horror when you realize how violent trolls are) Seatrolls would kill them on sight, but the water pressure where they lived made genocide impossible. As troll technology evolved, the only thing keeping them alive was the fact they were thought to be a myth over the years, and is now a bed time story lusii tell their trolls so they don’t swim too far down.

...Deep is a really weird looking word.