No he was dead. DX my poor boy. The hole is where the filter is. So I don't think he could have jumped, but a cat could reach her paw in there. I will never buy these filters again. It wasn't even necessary cause its a NPT tank, but koi seemed depressed and sluggish while it was off so I turned it on and he perked right up.
Tiny and Squirtle (squirt)
RIP:To all my sweet bettas swimming under the rainbow bridge. Shall miss you all.