So I was given an golden cobra snakehead awhile ago with a crooked spine. Since then i've nursed it back to health and was doing good for awhile. So far its been all good until recentl where he's started to develop fin and tail rot and he is not looking good at all. I've made the decision to end his life early. I had him in position just about to strike him behind the gill and i stopped at the last minute. Is there a better way i can kill him. I have no clove oil and its hard to get in Hong kong. any suggestions