I was wondering about cutting superworms in half as well... We took Wally to the vet yesterday, and she recommended trying supers when we told her that Wally was being a bit of a picky eater. We got the smallest ones that we could find, they're only slightly longer than the space between his eyes. We have only fed him a couple so far, and now after seeing that supers should only be fed once BD's get bigger, I'm wary of feeding him any more. However, I'm wondering if it's possible to feed them in halves, because it would be great if we could avoid wasting any more feeder insects than we already have.
Also: does anybody know of places to buy phoenix worms in Canada?