I try not to mist my chameleon directly but sometimes you just can't help it. I open the door and as soon as he sees the door he makes a beeline to get out so I have to crack the door and stick the sprayer nozzle in the crack and spray so he doesn't escape! lol! Are you using warm water?. If you put hot water in the sprayer you will notice it does not come out hot, but warm. Sometimes my cham will enjoy getting sprayed but only with warm water. As far as the reptiworms I saw them on Mulberry too. You can always ask Mulberry Farms for the nutrtional info(if it is not listed on the website, I did not check) and compare that with the nutritional value of other feeders. I am sure they are "safe" if they are selling them, but how good of a feeder remains to be seen. oops! didn't see that you are using warm water. Sorry!