That is an Oranda goldfish we like to call Brainiac, not because he's all that smart, but because of the wrinkly brain-like red bulge on the top of his head. Here is a picture of him up close. Isn't he cute!?
I've started training him to eat from the feeding wand that is part of the R2 Fish School Training Kit, as you can see. He's getting quite good and I'm planning to move on to hoop training next. I'll keep everyone posted on his progress.