On the top of the bedding in my bin I have a white "fluffy" type of mold. Should I do something or is there something I should be doing different?? I first found this about a week ago, so I added some dry newspaper and drilled some more air holes but it is still there and a little more of it now. Would taking the lid off for a while help? I guess the biggest question is, will it harm the worms????????

Thanks for any help you can offer.