How can you tell between a female or a male red tail shark?

Question

Just cuz i need to know each of my fish's s*x. and my red tail shark is only one of em.

Answer 1

you might look for a mustache.

Answer 2

Hi,

There aren't any definite ways but normally the female is fatter than the male.

Answer 3

There aren't any sure fire ways, but males tend to be much thinner, while females will become quite cylindrical with time.  Also, males usually have a fair bit of point to their dorsal fin.