This is my second batch of mealworms. First order (2K) pupated and huge black ants carried them off one by one. Then after moving my bin the humidity killed most of the others. The Beatles that survived were not Mealworm Beatles but a small sub species which I found out after pampering a bunch of black tiny mealworms. Which I now know are called mealies. I threw them all out. Cleaned my bins. Ordered 4K new giant worms and now one week in I have over 900 pupaes. And probably over 1500 dead black ones and a the rest are being constantly messed with gnats. How do I get these gnats to leave my larvae alone? I though I might have put too many carrots in the bin. So I threw the entire bin out after I picked out each live worm. I've added 0 carrots. It's just pure oats and corn meal. But the gnats are still there. Drives me crazy. Help!!