Sorry for late reply but looking at the video he is super skinny...
One thing i also noticed is you placed the pellet near the glass (im guessing for taking video), but do you normally do this as well? Coz im wondering if its always near the glass is he seeing a reflection of the food and targeting that rather than the food itself?
Final thought, have you tried other frozen foods such as meatier foods dangled infront of him to see if you can trigger more of a feeding response?
