Again 100% humidty isnt going to be an issue aslong as its not Too the extreme, i dont or havnt used them since stopping my glass tank, AS long as you mist your snake 1-2 times during shed daily, and spritz its 2-4 times a week non shed you should be fine... if he doesnt have a clean shed, spray little more, With a glass top id recommend Eco Earth compressed coco (similar to yours but finer) its amazing for humidity! and doesnt smell as bad as that stuff!