• BioSleep

    Anaesthetic for koi.

BioSleep is a specifically formulated natural sedative and has a calming effect on fish. This prevents stress during handling and topical treatment of fish.

BioSleep treatment

BioSleep has been specifically formulated using high purity extracts of pure clove bud (the fraction that has the highest eugenol content).

The formulation has been optimised to enhance diffusion in water and does not contain any carrier oils, thus significantly reducing the tendency for the oil to coat the gills of fish. The product is stable and consistent, ensuring that the user can accurately gauge dosage requirements. Beware of over-the-counter pharmacy applications that have not been specifically formulated for koi.

In the severest of cases, where fish are unable to eat, they can be humanely euthanised by leaving them in BioSleep until the gills stop moving. They gently go to sleep, without pain or suffering and can then be disposed of.

Dosage and directions for use

Never sedate more than one fish at a time and keep water well oxygenated with an air stone.

Pour pond water into a bowl and add 2 – 5 drops of BioSleep per litre – mix well before introducing the koi.

Ensure that water is well aerated. Response should be observable within 10 minutes depending on the size of the koi.

Additional oil can be added in dropwise increments if required.

Warning: Do not leave koi unattended. Consult with a professional if not familiar with this process.


Store below 25°C in a dry place out of direct sunlight.