I don't want to start fights just wondering what other people think, how you should let the rats go. So you can freeze them for f/t for you herp. I have a co2 kill tank so I can just put the rats in there(its big enough to hold up to 10 rats) and it only takes a min for the rats to pass out. I wait about ten min so they don't come back to life. Anyways just let me know what you think or what your ways are. Thank you!