Thanks for the freezer tip, I may give that a try! The husband is picking up some more crickets and hopefully a set of tongs on the way home from work this afternoon. I think my son would like to at least try the tongs feeding so we will see if that works, first.
Would it be too stressful to remove one from the terrarium and put it in a critter keeper at feeding time? I know a lot of keepers do that but I'm not sure about the timing, i.e., would that be better left until they are tamer and more accustomed to their new home.