Fin Rot On Female Betta?

[khial]

Hi everyone,

just been staring at the fish...as you do when i noticed 2 slits on one of my female bettas fins, i have never experienced fin rot before so unsure if this could be it

https/www.dropbox.com/s/wavabuvvtkl849n/2012-03-12%2022.19.13.jpg

 

[zoeya]

What do the slits look like? Do they look like bits, tears, change in colour or does the fin look like its rotting?