Hi BA,

Your African Violet definately has mold.

I don't understand what you mean by, 'the AV is in a watering pot.'
Does the container have drainage holes???

Besides using well-draining soil, soil needs to dry between waterings..
The pot should have drainage, too.

With a paper towel, wipe as much mold off as possible. Toss old soil.
If you use MG, you'll need to amend with perlite, tiny pebbles and/or small orchid bark. The smallest in size.

I've been told to sprinkle cinnamon on mold. It helped with my succulent.

How much light is your AV getting? Also, is the room warm or cool?

How often do you water?

I water my AV's via the saucer. When they're fertilized, it's done on top. So far so good. :)

Good luck,, Toni