All of mine get fed live and I haven't had any problems yet.

I do feed mine in seperate containers. I don't do it because I think they'll get cage aggressive, but because first, I get better control during feeding just in case something happens. Also, if you feed live, you know that the feeders defecate a whole lot if your snake doesn't kill it right away so I don't want my snakes slithering all over that.

In regards to the leftover feeders, I'm lucky enough to live two minutes away from the reptile store where I get my feeders. So if one of mine doesn't eat, I just return them.

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