How long will a fish survive out of water?
To leave a fish out of water to kill it is very painfull to the fish and it will suffer the same as a human suffocating. This is a kind way to euthanise (put to sleep) a fish. Oil Of Clove Add 12 drops of Oil of Clove per 1 gallon (3.84 liters) of dechlorinated water. Oil of clove is very hard to mix so you may want to emulsify the clove oil by placing it in a smaller amount of water in a glass jar and shake well. Place the fish in a container large enough for it to move around freely along with an airstone on the highest setting and add the clove oil solution. The airstone will help keep the clove oil in solution. Once the fish turns on its side, watch the opercular movements (respiration/gill movements). The fish should be removed from the solution after at least ten minutes have passed since the last observed opercular movements (respiration/gill movements). After this the fish will be dead and you can bury or dispose of it in another way.
the most humane way is to freeze the fish in a plastic bag with water in it. Do not flush it, this prolongs suffering and pain. It DOES NOT lead to the ocean. There are water purifiers and disgusting and chemically toxic thing in the water system once it gets through the toilet. This is unbelievably inhumane unless the fish is already dead.
