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Something that’s worried me ever since I started keeping fish (ok, water  Big Grin), is the accepted method of euthanasia, using clove oil. How do we know that this isn’t a ghastly experience for the fish?  How can we be sure it’s better than just letting them slowly fade away?
Thanks given by:
I think its a good way to do it as its an anaesthetic, but obviously the safest and sure thing is a clean blow to the head or decapitation (Both done correctly, otherwise they can be worse!).

I prefer the clove oil method.
Thanks given by: Blaise
I agree. Clove oil is used for surgery on bigger fish (eg very expensive fish). Snowaddict explained it to me some time ago after seeing a video of a large karp/koi having its fins clipped to remove some infected areas. Using only an anaesthetic dose means they wake up when put back in fresh water, and are a little groggy like we are after anaesthesia.
The correct method is to mix the clove oil to the level that it acts as an anaesthetic (a bit like us having anaesthetic for surgery) then you add a further dose which is then an overdose which is what brings the whole horrible situation to an end.
 😇 Heaven doesn’t want me...
And Hell is afraid I’ll take over! 😈
Thanks given by: Blaise
I agree. It’s unpleasant to have to do but the fish just go to sleep. As long as you don’t use too much before they are unconscious then the fish will have minimal suffering.
500L Sooperhooge Goldfish tank Smile
12L The Startank Aquaprise - Decommissioned Sad
200L The Barbarium….Green Tiger Barbs and Nerite snails
20L Nano Marine.....stocking in progress!
Thanks given by: Blaise
Thanks. What dosage does everyone use please (there are different answers online)?

I’ve used the ‘direct’ method and hate it! My preferred option is when I lift a fish from the water, momentarily, and it says, “Oh good, I don’t have to try anymore” and just stops! Trouble is it’s not foolproof, and I’d rather their suffering was as short as possible, rather than waiting for them to get really weak.
Thanks given by:
Dosage depends on the size of the fish. A neon will need much less than a big goldfish for example.

For a neon sized fish or similar I would start with 10-15 drops per litre. Always premix in some warm water first so that it doesn’t stay in globs.
500L Sooperhooge Goldfish tank Smile
12L The Startank Aquaprise - Decommissioned Sad
200L The Barbarium….Green Tiger Barbs and Nerite snails
20L Nano Marine.....stocking in progress!
Thanks given by: Blaise

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