Dealing with mold in soil

[Shane]

I'm looking for advice for dealing with mold. Despite my best efforts to keep everything sterile, a small patch of mold has appeared in one of my ~10 day old cactus plantings. It's on the soil, but not seeds or seedlings. It's blueish if that matters

I'm debating whether I should remove the patch with tweezers and sterilize the area (with H2O2), simply sterilize the area because removal could spread spores, or do nothing because opening the bag could let in further mold/pathogens

Any advice would be appreciated

[supergodzilla]

Remove with tweezers and spray with hydrogen peroxide.

[Shane]

Remove with tweezers and spray with hydrogen peroxide.

Thanks

Seemed to have worked so far