I agree with DVirginiana, stick with worms and crickets as staples. Worms are best. Be sure to use proper amphibian calcium with vitamin D3 as a light dusting on his food every other feeding and an amphibian multivitamin dusting one day a week. It is best to only feed one pinkie once a month.

The aggression is as noted above. Try going from behind him for cleanings. It's good that you use tongs for feedings.

Yes, a croaking Pacman is a male. Females can click and grunt.