Timberland....that's where my local petsmart and LPS get their worms. There's lots of online dealers though. I just get em from my LPS, and petsmart. Always smell them. Sometimes they go bad. Never had treated worms from a pet store....only from bait shops.

The mold wont hurt em, and youd smell it if the bacteria was bad. One other thing. I've never seen the mold grow on just coco fiber. There is always something its growing on. Cricket leg, turds, etc.

Fungus is bad, mold not so much. The white hairy looking stuff is just a little mold. Spot clean it out and it'll be just fine.

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Thanks
DW