Come on, let me be a fishman. You'll like him, he's a
pearlfish. Scrawny little guy like that, he should fit in with a human crew. Besides, being born ten times stronger than humans shouldn't make much of a difference on the Grand Line.
Also, you know merfolk and fishmen are different, right? One has a tail, the other is a humanoid fish.
Edit: Me and Mern get to be buddies again, yay!
Another Edit: Also, calling medic. I got dibs.