My chamy stay with open mouth

[alextraz]

Hi there, i saw today that after i fed him he stay with open mouth. Is it possible to be because i gave him too big cricet or it could be something else?

He is about 2 month old and the cricet was about 1cm and a half maybe.

This is not his usual behavior.

 

[Kate]

He's very small. Feeders should be no bigger than the space between their eyes.