I have know idea if they are always like this, but my bumblebee catfish I got a couple weeks ago is SO FAT! 
Maybe he just eats to much, which I am kinda afraid of, but when I first got him, I was worried cuz he almost never ate, but now, every time there is a sinking catfish wafer, sinking cichlid pellet, he jets out from under the bridge, snatches it, and goes back in. (Kind of cute
)
Here's a video, it's not until around 1:25 when he comes out.
http://www.youtube.com/watch?v=9srZEmzWyyw
Maybe he just eats to much, which I am kinda afraid of, but when I first got him, I was worried cuz he almost never ate, but now, every time there is a sinking catfish wafer, sinking cichlid pellet, he jets out from under the bridge, snatches it, and goes back in. (Kind of cute
Here's a video, it's not until around 1:25 when he comes out.
http://www.youtube.com/watch?v=9srZEmzWyyw
He's so cute