Protect your self this mold wont harm you,The mold you see isnt the problem,Its the fungi that lives in symbiosis with it lies dormant for years and a bathroom spray disinfectant might helpand rubbing alcohol works wonders and its cheap just pour a gallon on said mold and watch as it evaps and leaves oil left and bottom line is protect yourself!!IE feel water b4 jumping in bath! GREG WRITES!
Can’t answer on how to get it up other than brute force. However, mold spores (fungal spores) are not good to be breathing, so wear nitrile gloves and respirators that can filter out mold spores. N95 rated masks from 3M with a breathing valve are fairly comfortable.
Wash all contaminated clothing with hot water and detergent, boots with rubbing alcohol or a good fungicide (check with your local farm stores for good and cheap).
More good advice here:
Not all molds are pathogenic, but just about any spores can be major respiratory irritants if you inhale enough. Don’t take chances with your health — masks are cheap.