Sorry, one more thing. My copperband butterfly has never bothered any of my shrimp (skunk, fire, peppermind or pistol). It did, however, take care of all of my feather dusters on my LR in no time flat.
Some people are like slinkies...they serve no real purpose yet can still bring a smile to your face when you push them down the stairs!:p
Have a great day! Brian