That's correct. Ribbon eels are considered protandric hermaphrodites. They are born male and become female. So next time someone tells you being trans isn't natural, you can point out the Ribbon eel as an example of why they are wrong. :)
DID YOU KNOW
all female ribbon eels are trans
all ribbon eels are born male, but some transition into a female at one point in their lives
they also change colors when transitioning
from electric blue with a yellow stripe to pure pineapple yellow