I've gathered a nice litter collection of reef and frag tool. They are all stainless steal I assume. (Tweezers, bone cutters, sissors) I've never done more than rinse with fresh water and towel dry. I've noticed a small patch of surface rust forming on my large (fairly expensive) bone cutters. I know I could rub it down with WD40 and it would probably get rid of is and keep it from rusting.(did you know they clean the statue of liberty with WD40!?) But I don't think WD40 in any dose would be good for a reef aquarium or any fish tank really. Just wondering if there is a better way or a product to use to keep these tools clean and from ever rusting.