How do you euthanize your fish?

[Tiffi]

I usually do it with alcohol. If the concentration is high enough (pretty VODKA much straight out of the bottle) it will only take a few seconds. The good thing about this too is that I don't have to place a nasty sick fish into my freezer with all the food to completely freeze him.

[Jchillin]

Though I've never used it, I've heard mention of using clove oil. This is also supposed to shut the system down.

[DeFeKt]

I think you missed the best and most humane one.
put it in a bag and a hard and sharp blow onto the bench.
no stress, no mess and really effective.

[nomadofthehills]

I just cut the head off, very quick and humane. Working in a pet store, I have to do this too frequently

[aquakev]

i have adopted the smack, your done method.

[Hillbilly Jerry]

I'll third the blunt force trauma method here. Very fast method that leaves little time for any pain or emotional damage fish may or may not be able to experience.

[tropicfishman]

its bigger than any net i've seen lol