I realize this thread is pretty old but I thought I'd give my two cents worth. I stumbled upon BSF a couple of years ago. I was cleaning out a bird feeder and it was full of these giant maggot things. I immediately got rid of them and got right onto sanitizing the feeder.
It wasn't a week later when I was researching Aquaponics and raising Tilapia. There was a picture of those giant maggots and I learned all about them. I went to work and built one following plans I found online. It worked great and had thousands of the larvae. Someone I met on the BSF forum said she had a Biopod that I could have if I'd pay the shipping. She'd outgrown her need for it. I set it up and it worked like a charm.
Fast forward to one month ago. I was moving and my BSF cultures hadn't been restarted in the Spring since I knew I'd be moving. I brought it to the new house, set it up, and started filling with my food scraps. I had a chicken in the fridge that I'd let stay too long and I threw that in the Biopod. By the next day it was covered in housefly maggots. I thought to myself "what have I done". There was no way the BSF would be able to compete with literally millions of maggots. I was scooping them out by the trowel-ful and feeding to my chickens. Well, within a week I started noticing BSF larvae. It's only been a couple of weeks now and there are no housefly larvae. It's teaming with BSF. Every night I harvest probably 3/4 cup and feed to my chickens. They love this nightly treat.
I was missing my garbage disposal (there's not one at this house) and was going to get one. I started scraping plates, saving vegetable peelings, etc. and putting in my Biopod. They will eat anything you put in there except egg shells, onion skins, corn cobs, etc.