I'm using Cypress Mulch that I got from the reptile shop down the road. The reptile shop is very reliable, the guy who owns it is the creator of Reptilegeeks.com, so needless to say, I trust him.

I just put the mulch in my tank yesterday, and since then I've seen these itsy bitsy black flying bugs around the house. I don't keep any fruits or vegetables outside of the fridge, so I know it's not from that. Now I've been contemplating putting more mulch in the tank, I picked up one of the hides and out came a little bug!

They're a bit smaller than gnats, but they could be gnats, I'm not sure. Should I be worried about this? Maybe the mulch is too humid? I don't know what's going on