Watch out with grasshoppers, one of my mantids lost the "finger" on her claw. The hopper bit it off! My mantis was an adult but had no experience with prey like it. Only flies and moths.
Yea these grasshoppers seem like they could do some damage, either from a pretty good kick, or those crazy mandibles. I'm paranoid feeding crickets. I prefer flies, they're like little jelly filled donuts, safe and comfy. lol
Crickets are scary for me too, manly for the reason that some people say that they stunt size while others disagree. I am only rasing nymphs right now so I have no Idea what they will do to my Griffins
Never had crickets stunt anyone's growth. I hand feed my mantises so no one ever gets bitten or injured(personal preference, they sit on my hand eating so I can bond and monitor). I raise my own so I know exactly what my crickets eat and how healthy they are. Never ever had a problem with crickets