Euthanasia in Koi and Ornamental Fish

2019: It is my opinion at this date that the best most humane way to euthanise fish is to give them an overdose of anesthesia in a sizable container that is not cramped. Then, when non responsive, put them in the freezer until they are a block. For much larger, too-large-to-freeze-fish, anesthesia followed by baton … Read more