Yes, you would need to be very careful that is certain.
Here is info from the article:
Clove Method How-To: (Fish up to 3”)
1. Using a small clean container, filled with tank water, add approx. 1 drop of clove oil per 24oz.*, and shake vigorously. The clove oil must emulsify (will turn the water a milky white). *Remember the amount of water you use (needed for alcohol concentration below).
2. Add the fish, and check back in about 10-15 minutes. If the fish is still swimming occasionally, pre-mix a small amount of clove-oil and add this to the container. Wait again.
3. Add 20-25% volume of grain alcohol. For example, if the fish is in 8oz (240ml) of water, add 2oz (60ml) of vodka.
4. Check the fish carefully after 20 minutes. If there is no sign of gill movement after a minute, the fish has expired.
*(Fish over 3”+) Follow the above instruction, but increase the Clove Oil concentrations to 10 drops per US Gallon (or 1 drop per 13oz).
Yes, for anesthesia the concentration seems to be 1 drop for 24oz for fish under 3" and 1 drop for 12oz for fish over 3". So my concentration was stronger than needed for anesthsia, but it still took my guppy about 10 minutes to become anesthetised and asleep with the 1 drop I added to appx 12oz. With the 3oz in the baster the total would have been 1 drop for 15oz in the case of my guppy. After 10 minutes of sleeping I gave him the lethal dose.
I don't use the alcohol method with the clove oil for euthansia, I just use the lethal concentration of clove oil.
Here is info from the article:
Clove Method How-To: (Fish up to 3”)
1. Using a small clean container, filled with tank water, add approx. 1 drop of clove oil per 24oz.*, and shake vigorously. The clove oil must emulsify (will turn the water a milky white). *Remember the amount of water you use (needed for alcohol concentration below).
2. Add the fish, and check back in about 10-15 minutes. If the fish is still swimming occasionally, pre-mix a small amount of clove-oil and add this to the container. Wait again.
3. Add 20-25% volume of grain alcohol. For example, if the fish is in 8oz (240ml) of water, add 2oz (60ml) of vodka.
4. Check the fish carefully after 20 minutes. If there is no sign of gill movement after a minute, the fish has expired.
*(Fish over 3”+) Follow the above instruction, but increase the Clove Oil concentrations to 10 drops per US Gallon (or 1 drop per 13oz).
Yes, for anesthesia the concentration seems to be 1 drop for 24oz for fish under 3" and 1 drop for 12oz for fish over 3". So my concentration was stronger than needed for anesthsia, but it still took my guppy about 10 minutes to become anesthetised and asleep with the 1 drop I added to appx 12oz. With the 3oz in the baster the total would have been 1 drop for 15oz in the case of my guppy. After 10 minutes of sleeping I gave him the lethal dose.
I don't use the alcohol method with the clove oil for euthansia, I just use the lethal concentration of clove oil.