so ive had this 2 foot tegu for 3 days now and he is doing great. he would walk into my hand and eat out of it too now. although, i am concerned about his pacing and scratching on the glass. he does this every night, starting at around 7 (wont stop doing it even after his lights are out). is this normal for a new tegu? he eats a lot. he usually wakes up at around 12 and sleeps again after a small snack. then comes back out at 4/5, climbs up on me, eat some more. then i put him back. every time after i put him back he starts pacing, when i open the cage it stops and he licks and observes me for a while. i usually sit beside the cage. when i go back to my room though, he starts pacing again non stop. is this a concern or is this normal for new tegus? the cage is two times his size, im currently building a bigger one (the seller posted when he was a bit smaller so thought this cage would last a bit longer than it did).