If you have a method, that you know will be frowned upon, then you should probably switch methods.
Can you please not edit posts so drastically. Either think before you post or live with what you post. This thread doesn't make any sense at all and the resulting discussion is rather worrying as I don't know what you're on about... Dreadful pictures are flashing through my mind now as to what this 'frowned upon' method may be. So, despite your editing, it is still a big deal.Well...
I edited my post so now its not a big deal.
Depends entirely on what your goals are. I cull mice that are sick, beyond breeding/showing age, or that I simply don't need. If you're showing you would cull mice of any age with obvious faults, assuming you have enough good ones to work with. You might cull all of the pinkie males on day one because you don't need any males. Just depends. If you can a bit more specific you might get a more useful answer!1.-How do you know what to cull and what not to cull?
Ain't no point waiting around! Just get it done2.-When should you cull if you are going to?
It doesn't take up any room! Mine is just a little tupperware lunchbox, a plastic tube and a bottle of CO2 that's about the size of a 1.5lt bottle.as for culling i dont have the room for a co2 tank setup as im in a 1 br apartment.