I recentely attached an old Crayford focuser to my C-8, Last night when setting up I noticed a cockroach crawling over the inside of the corrector plate. Anyone have any ideas on how to extract, kill, remove the cockroach I have some gel-bait based on boric acid but I'm not sure it's a good idea to use the near coated optics. Should I I remove the corrector and clean the corrector and mirror as a precaution?