Hi Peri, are you wiping away any moisture that is building up in your cheese box and flipping your cheeses? Did these crottin sit out at all to get their bloom before you put them in the fridge or did they go straight into the fridge for draining? I would put a dab of vinegar and a sprinkle of kosher salt on any odd colored mold you might be getting, and keep the box nice and dry. I have found that crottin grow nice white mold in a week or so and then they can really take off with the aging process. They can go from just right to over ripe fairly quickly.