We moved Dexter up to fuzzies a month ago, while he was on pinkies he was fairly casual about it, just chomp and gulp. When we moved him up he started to leap at them and wrap around them and squeeze! The force of the squeeze moves him around the feeding box, is this normal? Are we under feeding him? (1 fuzzy per 5 days). Is this just him play hunting like a pup or kitten?