One of my leos has addopted a weird behavior. He will be walking around his tank and will go to the glass and act as if he is trying to escape and it looks like he is running on the glass. I feel bad when he does this like I may be treating him wrongly but idk, he is also not eating very much at all only a cricket or two a week. He is in his own 25g tank and im very worried. has anyone ever seen this before?