FYI- found fly maggots at my local bait shop. I went in to get my crickets and saw a sign on the front door saying they had fly maggots. I asked the owner and he showed them to me. They are EXTREMELY active straight out of the fridge. He said I had to keep them refrigerated or the would hatch into flies in a few days. Don't know if that's accurate or not. I'm going to try and gutload them first as I don't know what they have been fed on. They were 2.99 per 100. I'm also going to try and let a few become flies. Does anyone have any experiance in this? Thanks David