Well, yesterday night I filled Ferdinand's tank up, it was really full then. AT night my cat drinks out of his tank, she's done it with all my bettas tanks for a long time. Well around noon I was going to feed Cheng and Ferdinand because I had forgotten to this morning. I looked in Ferdinand's tank, and he was nowhere to be seen. I looked all over the floor, thinking he had jumped out of the tank since it was so full. He wasn't on the floor, no body. I was sad and scared at this point. I figured maybe though he was hiding somewhere. I probed the whole tank with my hands. No Ferdy. All I can figure is that my cat either ate him while she was drinking from his tank because he swam by her a bunch last night, or he jumped out and then she ate him. Either way I am sad and disapointed because I only had him for a month and he was so sweet. I don't blame my cat, she didn't know any better, but I am still sad. So rest in peace beautiful friend.