well its the 3rd week since i went from mice to rats.this week i tried a frozen one that i thawed out with a hair dryer.he was in strike position for 25 mins but nothing so i put him back in his tank then took him out 15 mins later and tried again still no luck. a friend of mine said to leave it overnight in his tank but im worried about tank aggresion.hes in hunt mode now and i really dont know what i should do i know he is hungry.any suggestions