So I just recently got a baby axolotl (very recently, not even 4 days ago), and he's in wonderful health. He swims just fine, he's got wonderful gills, he doesn't show any signs of sickness, and he's a gorgeous little albino. I've been feeding him bloodworms and the occasional betta food pellet, and he seems to like it just fine. The thing is, whenever I feed him, he becomes hyper and starts darting around the surface of the water snapping at bubbles (and sometimes my fingers!). Is this something I should be worried about, or is it just typical behavior for juveniles?