I am trying to put together a thread on how to sex different species of fish. Preferably with 100% accuracy but I realize not many methods are that fool proof...

I am familiar with a couple different methods for a few different species, but I am looking to the Pond Boss community to break it down a little better. What method do you or have you used to sex the different species of fish you've dealt with. Perhaps list the species and the methods you have used and what you think your success rate was at being correct.

It seems a lot of us on here are always looking at adding just male or just female to our ponds when we want to control reproduction so I thought this maybe helpful to our future endeavors...