Mold removal

Any suggestions on how to remove mold and or staining from mold (I think that’s what it is) on the console plastic of an Alumacraft? I’ve tried simple green, magic erasers and dawn dish soap with minimal results. I bought the boat with the staining hoping it would come off… I also think it is from moisture trapped under the cover which I am also trying to remedy. Thanks!

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Bleach then soap and water rinse well should work.

I believe that to be an algae. Try an algaecide.

Soft scrub bleach