Help taking fish pictures

[FishingGoalie]

Hello as the title states I'm in need of some help. I can't seem to get any pictures of my fish because by the time i go to take the picture they move waaaaaaaayyaay too fast. Ive tried tracking the fish, I've tried keeping the camera in the same spot but i just can't seem to get a good picture. I have a olympus EPL-1, which i think is considered a mini DSLR with just the standard lens that comes with it.

Any advice would be helpful.

Thanks
Hayden