Narcomor Plus anaesthetic for ornamental fish

Regular price $39.00
Regular price Sale price $39.00

This 100 ml bottle of phenoxyethanol, supplied with its dosing syringe, is used to anaesthetise or calm a freshwater or marine ornamental fish.

The product is used in a bath prepared separately, never in the main aquarium.

Ref. 320221·Fish anaesthetic
Capacity : 100 ml
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The summary

  • What you receive: a 100 ml bottle and the dosing syringe that comes with it.
  • What it is for: immobilising an ornamental fish while you measure it, move it or examine it.
  • How much you need: 5 ml per 10 litres of bath water for anaesthesia.
  • How long it takes: breathing slows within a few minutes, and normal activity returns just as quickly once the fish is back in the tank.
  • Suitable water types: freshwater and marine ornamental fish.
  • Shipping: small bottle, delivered to your door by Colissimo or Chronopost.

Anaesthesia and sedation of ornamental fish, in a bath prepared separately

Narcomor Plus is a 100 ml bottle of phenoxyethanol, supplied with its dosing syringe, which anaesthetises or calms an ornamental freshwater or marine fish. It is used in a bath prepared separately, at a rate of 5 ml per 10 litres. Breathing slows within a few minutes, and normal activity returns just as quickly once the fish is back in the tank.

This 100 ml bottle contains phenoxyethanol, the active substance that sedates an ornamental fish for the duration of a procedure. It carries the mention of a medicine approved under animal welfare rules, and it covers freshwater as well as seawater. A dosing syringe comes with the bottle, because the quantities are counted in millilitres and not in capfuls. The product is used in three ways, which call for neither the same quantity nor the same duration: choose the one that matches your procedure before dosing.

The bath is prepared separately

The product is poured into a container filled with water from your aquarium or pond, and the fish is placed in it for the duration of the procedure. It must not be poured into the main aquarium. The product is for ornamental freshwater and saltwater fish, which excludes fish from a system whose produce you eat: on a food-producing installation, handling is done without any product, and fish health issues are addressed through diagnosis and water quality.

💤 What the product causes

In the bath, the fish's breathing slows within a few minutes. The fish stops struggling, which makes it possible to measure it, photograph it, move it from one tank to another or examine it closely. Once returned to its aquarium or its pond, it also recovers normal activity within a few minutes. At the anaesthetic dose, the effect is reversible, whereas the end-of-life dose, 3 times stronger, is not. You therefore control the effect obtained, provided that you calculate on the volume of your bath and not on that of your aquarium, and that you prepare what you are going to do before placing the fish in the bath.

📐 The three doses

All doses are calculated on the volume of the bath, at 0.5 ml per litre for anaesthesia. A bucket containing 4 litres of water from your tank therefore needs 2 ml, and a 20-litre transport tank, at the sedation dose, needs 2.5. The 100 ml bottle therefore covers 20 anaesthetics in 10-litre baths. Measure the water actually poured into the container rather than relying on its nominal capacity, because a 10-litre bucket filled to three quarters holds only 7.5 litres, and a dose calculated for 10 litres would be a third too strong.

Anaesthetise

Pour in 5 ml per 10 litres of aquarium or pond water, into the prepared bath.

Calming a transport

Dilute 5 ml in the same amount of water, then pour the mixture into 40 litres of transport water.

Ending a life early

Add 15 ml per 10 litres, and leave the fish in the bath for at least 30 minutes.

Aerate the wake-up bath with an air pump

Recovery takes place in well-aerated water, and this condition matters even more when the fish has received a slightly strong dose. An aquarium air pump connected to an air stone, switched on in the recovery container before the procedure, stirs the water and maintains its oxygen content throughout the procedure. This way you put the fish back into water that is ready, instead of looking for an air stone at the moment it needs one.

🩺 The revival bath

Once the procedure is over, the fish goes back into its aquarium, or into a container of clean, well-aerated water taken from the same tank, and resumes normal activity within a few minutes. If its breathing stays weak, or barely perceptible, the dose was too strong: place it straight away in this well-aerated recovery bath and encourage it to swim. The return of movement in the gill covers, the flaps that cover the gills, shows that breathing has recovered. Prepare this container before you begin, next to the anaesthetic bath, so that you have nothing to look for during the procedure.

🚚 Sedation during transport

For a journey, the dose stays low: 5 ml diluted in the same amount of water, then poured into 40 litres of transport water, which calms the fish within a few minutes without sedating them. Prepare this mixture just when filling the bag or tub, using water from the original pond or aquarium. On arrival, the treated transport water must not go back into the aquarium or the pond: transfer your fish with a net and discard this water, since it contains the product, which has no place in the water your fish live in.

🧰 The bottle and its syringe

The syringe is used to draw up the required amount, then to draw up the same amount of water before pushing the plunger to expel it all at once: the product is thus spread through the water instead of staying at the surface. Then store your bottle out of the reach of children. This bottle supports good husbandry and does not replace any treatment: when a fish is ill, what it needs is a targeted treatment, and a nitrite test will often reveal the source of the problem before you handle the fish at all.

Technical specifications

The essentials

Active substance
Phenoxyethanol
Capacity
100 mlA dosing syringe is supplied with the bottle.

The doses

Anaesthesia
5 ml per 10 LIn a bath prepared with water from the aquarium or pond.
Transport sedation
5 ml per 40 LThe product is diluted in an equal amount of water before it goes into the transport water.

Use

Fish concerned
Ornamental fish, freshwater and marine
Time to take effect
A few minutesBreathing slows, then picks up its rhythm again once the fish is back in the tank.

To budget for separately

Bathing container
A clean 10-litre bucket
Fishing net
A wide-mesh net

In the box

  • 1 bottle of 100 ml
  • 1 dosing syringe

Active substance, doses, durations and bottle contents taken on 20 September 2026 from the Aquarium Münster instruction leaflet.

Manufacturer and product safety

Manufacturer
Aquarium Münster Pahlsmeier GmbH
Postal address
Galgheide 8, 48291 Telgte, Allemagne

Information provided under Regulation (EU) 2023/988 on general product safety.

Estimate your
delivery time

Dispatched as a tracked parcel, by Colissimo or Chronopost to your home. The exact charges and delivery times are shown in your basket once the address has been entered. Outside the European Union, import duties and taxes remain the responsibility of the recipient. Once unsealed, this product cannot be returned under the right of withdrawal (article L221-28, 5° of the French Consumer Code), for reasons of hygiene and health protection.

Frequently asked questions

8 questions

6 key questions, 8 in the detailed view

How much product for your bath

Enter the volume of the container you will put the fish in, not that of your aquarium.

L
1 L40 L
0ml

at the anaesthetic dose, 5 ml per 10 litres

Anaesthetic dose taken on 20 September 2026 from the Aquarium Münster instruction leaflet.

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