How To Euthanize A Fish With Vodka. Do not do this while the fish is awake, as it will be very painful. This is the way to euthanize fish.
Cranial concussion, decapitation, vodka, clove oil and iced very cold saltwater are all acceptable methods of euthanizing a tropical fish. Clove oil and vodka are available at various stores and can easily be bought without a prescription, unlike all anesthetic drugs. One says to put the fish in a mild alcohol solution, maybe 10% alcohol at most (1 part vodka to 4 parts water) and the fish will become intoxicated, pass out and die.
Vodka, which can be used to euthanize a fish.
Alcohol should never be drunk by the boat driver while on the water, but borrowing a couple shots of your fishing buddy’s tequila or rum just might put that fish to rest. Catch it and drop it into a bowl or container of ice water. Many people will recommend using alcohol, like vodka, in place of the second dose of clove oil. Next, pour a glass of vodka, (a grain alcohol) in to the container.