pete said:
Any runts or sick dying fish in my care go straight into Oscars tank or with the Clown Knifefish
Sorry, did i understand it right: You put your fish into another tank that fish is eaten?
IF i understood it right, have you ever tought about consequences? If the fish is sick, other fish are danger to get that disease too. (Like most fish are carrying tuberculosis and how do you know that your sick fish hasn't fish-tuberculous)
I don't know about you, but here where i live, it's simply prohibited to feed animal with living animal, including fish too.
dragonslair said:
What would you choose as your method to destroy a sick fish? You must assume that many of us are not able to simply purchase drugs over the counter in the U.K. Most of my colleagues are not microbiologists, they are simply hobbyists that are enthuastic about their hobby.
The best method is to use scissor or sharp knife.
And it's even harder to get any drugs in Finland. I have none, because i haven't found any friendly vet who would write prescription for MS222 or benzocaine. When you put right proportion, fish "goes asleep" and when you add more enough fish dies.
I wouldn't use any other chemical like CO2 (this is not good method) or alcohol (fish will suffer - try yourself to trink strong alcohol or put it in cut), or hot water (their is several case that fish has jumped out of pot and skin was "hatched out"), hot water only small fish like neontetra.
You have to always remember: When you take pet, you have to prepare yourself that someday you may have to put it down. If you can not do it yourself, call your friend or aquarium-shops, they can!