Its normal for new vivs to grow mold. You will never get rid of it, but you can keep it under control. Add some dwarf woodlice and/or springtails. They wil eat the mold and keep it down to a minimum.
Yep, totally normal. Every new viv will mold. It usually blooms in new vivs and then dies away over time. That being said, some types of wood continue to produce a black slimey mold, but that doesn't appear to be what you have going.
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