STELLAR Posted April 25, 2018 Report Posted April 25, 2018 This is some fresh substrate I mixed using rotten Oak and some dirt from yard. That was a week ago. I checked on it this week and found this stuff growing on it. Could you guys tell me what this and if it is harmful to my beetle? Additionally I noticed small amounts of mold growing too. If this is dangerous let me know. https://imgur.com/a/nRkKUHI Quote
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