When it come to sexing. Betta's are the easiest one to distinguish. But the betta which i rescued from my LFS consfused me. I only kept them hardly 2 to 3 times in my life and always i had a male which can be easily distinguished by its long fins and bright colors. But now i am confused with one i am having right now either its a male or female. Some times it seems its a female some time it seems its a male reaching towards his maturity. So finally i am here to have the advice of experts and betta keepers..