or any crickets that have been running around your viv. this is because * you do not know why the cricket was dead in the first place *if the cricket has been running around the tank then it will has shaken off all of the calcium *the cickets that have been running around could be eating the poo from your lizard and then.. well you get the picture, its not healthy also (perhaps obvious but it has been known) take out any poo you find about
