<a href=showthread.php?s=&postid=7647871#post7647871 target=_blank>Originally posted</a> by NicoleC
The freezer method is very controversial, it MAY be very cruel. As Bridgette said, clove oil or MS222 are the best options.
Failing that, a quick chop of the knife will be humane for the fish (but harder on you!)
But before that... has she tried antibiotics yet?
<a href=showthread.php?s=&postid=7647387#post7647387 target=_blank>Originally posted</a> by energy_crisis
put it into a bag or sock and smash it as fast/hard against something solid...should die after first blow.