I just picked up a little silver arrowana this weekend and I have to agree with you. He's fluid, gracefull and highly observant of his environment. He's an amature when it comes to hunting though. He's in a tank full of nice clean feeder guppies (Half the reason I got him is to do something with my guppy/endler surplus) and while he shows interest in snapping up these little morsels, I've only seen him get one of them. Usually, he'll dart at one, and make a clean miss. I know he's just a baby, but will his hunting skills improve? He's supplementing his diet with flakes, so I'm not worried about him starving to death, just wondering if he's going to be the lean, mean, guppy eating machine I hope he will become.