Hydrogen peroxide, or distilled white vinegar (not bleach, it'll clean the surface and continue growing inside)

If that fails, I saw rmr-86 has good reviews. But to use it you'll need more protective gear than when opening the instagram comment section. Full face respirator, safety googles and chemical resistant gloves.

Please watch for any signs of black mold poisoning such as persistent coughing, shortness of breath or a sudden hatred towards transgender people.

you gotta clean it with bleach, im pretty sure.