Anyone can see it's a cocker-spaniel, give it a few bonio's and a pat from time to time to keep it happy, it's coat shiny and it's nose wet ( patting on the head will of course do this if applied heavily enough to make it sink below the water line).
Don't forget to take it for walks on a regular basis.
If you decide in the end to put it into a tank make sure it's not one of those Abrams or Shermans as they can get a bit cramped.
Oh and you could have thought of a more original name for it than Bob!