First mistake was using a clear pot. That's what caused your mold issue. Try a sulphur based fungicide.

Au contraire, Tommy! Fungi couldn't care less whether a pot is clear or opaque. Algae, on the other hand, would be a possible issue with clear pots as they are photosynthesizers.

The fungi might not even be an issue ... depending upon just what type of fungi they prove to be. If you have "spares" you might just leave a couple plants be and see how they fare. What types of cps are in the pots anyway?

Strong chamomile tea might do the trick or even a strong cinnamon tea if you are unable to pick up a sulfur based fungicide as Tommy recommended. I must add that while I have used chamomile tea as fungicide on "regular" plants, I have not tested it on cps. {{gwi:2123460}}