:D Sparky is hard to take pics of. When I get the camera out, he goes into his tunnel and makes fishy faces at me. I need to set up a surveillance camera and ambush him. He loves the turtle tunnel the best but I do see him in his white pipe every now and then.
I think mostly he's just happy he can actually swim around, like you said. You're right, he probably does need exercise. What a tubbo. And even now I'm not sure how much I should be feeding him. At the moment, he gets 4 Hikari Massivore Nuggets a day but that feels like too little. And yet, he's so fat! *is confused*