GW, I saw this thread posted on another forum and wanted to ask you something. I was very interested in your project/experiment because I wanted to have a year round supply of feeder insects for my frogs. I'd use adults as well as larvae. I'm looking to automate the frog feeding process.

My question is are the SF "clean"? In other words if I re-created your experiment and used wild adults to start the culture, could those flies introduce and pass on any harmful bacteria / parasites to my frogs or even myself?

I read the entire article you referred to and I've read all the posts (all 6 pages) of this thread. I'm just not sure about how clean the culture would be. You mentioned that the larvae release an antibiotic and "clean" themselves. You also mention that they outcompete other flies. I was worries specifically about botulism or any other nasty.