There isn't nearly as much information about BSF as there is about the common house fly. I think I'll look into how other flies survive northern winters for some possible insight into BSF.
I'll send you some eggs and larvae as soon as my BSF unit comes back into balance after a recent crash that I caused. I pushed the limits of my small container and I went too far. It's all in the name of (pseudo) science.
If you're curious you can read about the crash at my blog.
