Hi I have a WC garter snake that I have been feeding small "comets" (the feeder fish at the petstore). I have been feeding him one a day, and I always thought this was ok because he took them without hesitating. I just read though that they should be fed a fish big enough to make a small buldge once every 5 days. And I read some fish have a dangerous enzyme. Does anybody know if these fish have that enzyme? And I am thinking about switching to pinkies (I think he will like them because he just snaps at and eats anything that dangles in front of him) how often should I give him one of those?