Lol...isn't that the guy wanting to feed spaghetti to his frog?
Anyway, just feed nymphs to Rhino. She's just a little one still. The last roach I fed was about an inch. It didn't cause the impaction. I noticed the impaction as soon as she ate the roach.
BTW, she's doing well. Fed her a couple earth worm I cut in half. She was a hungry little monster too.