Mines in the house too. You should look into kassaundras way of sprouting in burlap bags.Is there a chance rodents might be able to touch the feed you're fermenting? I've noticed with my sprouts that the slightest amount of rodent excreta in the bucket will ruin the whole batch of sprouts, and they'll rot before sprouting (and smell very vomity). I had rats climbing to dip paws into the soaking water, ugh!
Sorry to raise a new issue and it may not be the problem you're seeing.
What were you trying to ferment?By day 3 my fermented feed was starting to grow mold...so I tossed it...not sure where I went wrong, but there went that idea.
Did you kick start with anything?
How long did it set before the mold ?
1 or 2 bucket system?
Your ferment should have a smell not strong and punjent but a smell. Some say like sour dough some say a little stronger than that. When mine loses its smell I add some more UP/ACV