@Oberon46 Will this work?
http://www.swansonvitamins.com...
How much oil do you put in say a gallon of water? I seen a youtube video on using clove oil and apparently too little will only make them appear dead, but they revive later. I do want them to die, I would feel awful if they came "back to life"
Also how do you dispose of yours? Is it ok to dump the water down my toilet and wrap the fish for the garbage dumpster?