As I mentioned awhile back, my betta fish Yuki had passed away. I actually knew how she died, as it was all my mother's fault. Even though she's not a clownfish (or male), my mother would call my fish "Nemo". She thought it would be fun to pet her Nemo on the head, and my fish went into shock. She stayed near the bottom of her tank for the rest of the night. The next morning, I found her in her log lifeless.