Originally Posted by Arashi Takamine
I don't recommend decapitation. Clove oil really is the most humane way in my opinion.
A fast decapitation is painless, just (frankly) gross and sad...
And clove oil is a mild anesthetic in humans, for toothaches, sores, sometimes even used as an antiseptic... When introduced to fish, being so much smaller than we, it can over come them when introduced at a fair pace (below), putting it to sleep, then deeper so, then finally, it will pass away (asleep).
From what Ive read and heard others do with the clove oil is put a few drops, like 2-3 in water, shaken before or well stirred to mix in (it might turn white and gross), and then add it to a small container, a gallon or so. After a bit the fish will become sleepy, and then more is added, 2-3 drops of the stuff, which (I think) may cause it to float (but not die), and once that happens, 3-4 more drops are added, which will allow the fish to gently pass. It takes an hour or so. Everything added needs to be shaken well in water (not too much) beforehand to mix it in.
You know the fish has passed when its gills wont move and it (certainly) isnt swimming around. Add a couple drops at this time to assure the fish has moved on.
There are other vodka/clove oil combos, but I dont like them much..