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Anaesthetic for pet fish in an easy-to-use 250ml bottle

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Aqua-Sed anaesthetic for pet fish

Aqua-Sed is based on the tried and tested active ingredient 2-phenoxyethanol, and it comes in a 250ml bottle with an easy-to-use measuring pump. It's a liquid with a very wide safety margin and has been used for anaesthetising fish for many years (reports go back to 1943). Please note that any anaesthetic a carries a risk, sometimes because the fish may have an unknown/undiagnosed problem which may cause an issue. For this reason we do not suggest the routine use of anaesthesia of koi carp for a general check-up.

We have produced a couple of pages in our information section which explain the process of anaesthesia and considerations.

Fish anaesthesia  

Aqua-Sed is is also suitable for use as a fish euthanasia product (at 4x the normal dose), which will enable fish keepers to humanely euthanase seriously ill or severely injured fish. Aqua-Sed also presents a significant leap forward for petfish welfare, carrying instructions on how to humanely euthanase pet fish.

Fish Euthanasia 

Don’t put anaesthetics into the pond, always do this process in a separate container. Before you sedate or anaesthetise a fish make sure you have everything you need before you start. 

•    Fill a suitable bowl with enough pond or tank water to cover the fish. Shake the bottle before use. Use one measuring pump (1.5ml) per litre of water - add the measured dosage of Aqua-Sed and aerate with an air stone. Fish may get excited when first exposed to the sedative so cover the container.
•    Place fish in bowl until it rolls onto its side (normally 2-3 minutes). Lift fish, if there is any tail movement then place back into solution for a further 30 seconds until it is fully sedated.
•    When you take the fish out of water for a procedure, lay it on a wet towel and cover the eyes and tail with the towel, ideally have assistance who can 'control' the fish while you do what is necessary
•    Have a container of fresh water available for recovery. It’s often safer and easier to use containers for recovery rather than simply immediately returning fish to the pond.
•    To assist recovery gently move the fish forward through the fresh water to help the water flow over the gills

Aqua-Sed can be used in the presence of salt. The transition between stages of anaesthesia can be very rapid so great care is needed.

Q. What temperature should the water be when using Aqua-Sed?
A. Aqua-Sed will work in water of all temperatures and there is no minimum temperature it can be used at. At lower temperatures it will take longer to take effect, so please be aware of this.


Q. How should I store Aqua-Sed?
A. Aqua-Sed should be stored at room temperature to prevent the liquid from becoming too thick to mix with the water.    


Q. Can I use Aqua-Sed to sedate amphibians?
A. Yes, you can use Aqua-Sed to sedate amphibians at the same dosage as stated for fish, However great care should be taken and under veterinary supervision as the process will take effect much quicker due to the product being absorbed through the skin.

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