negative_tea;4804278; said:So...still I am curious why an injection of potassium chloride would not be an option....
It's how I would choose to go. Then again I am a human not a fish.
I have yet to have to kill one of my fish but in the event that I need to I would like to know if a solution of potassium chloride would be quick, painless, and effective.
Oh...and OP I am very sorry for your loss.
The fish and game uses PC to eradicate zebra mussels...
I would assume it would work.