Virasure Koi Tablets


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Product Description

Virasure® Koi Tablets

Virasure® Koi is a powerful anti-microbial agent for use in koi ponds with proven activity against a variety of fish pathogens. Used as a water conditioner or disinfectant it is an invaluable tool in the effective control of fish microbes.

Key benefits:

- Simple to use
- Environmentally safe
- 1 tablet per 5000 litres (recommended dosage per week)
- Long acting
- Virasure® Koi is being used with great success by leading Koi Keepers.

Uses of Virasure® Koi Tablets

- Conditioner for Pond Water
- Disinfectant for Equipment

This product has been tested by the manufacturers for use down to 4°C showing good efficacy at this temperature. It has not been tested below this level but some efficacy is expected.

Available in 60 tablet box or 500 tablet bucket

Dosage Guide

Virasure® Koi can be used as a conditioner for pond water.

  • You must calculate the volume of your pond water before using Virasure® Koi tablets.
  • Virasure® Koi should be used at a dose rate of one tablet per 5000 litre.
  • Prepare a solution by adding tablet(s) to small amount of warm water (see table below). Leave to completely dissolve.
  • Pour the prepared solution evenly around the perimeter of the pond.
  • Do not exceed the recommended dose.
  • Treatment may be repeated every week depending on pond conditions and water changes.
Pond Sanitation
Quantity of
solution required
Number of
tablets to add
5,000 litre 1
10,000 litre 2
15,000 litre 3
20,000 litre 4
25,000 litre 5

Virasure® Koi can be used as a disinfectant for equipment.

  • Use at a dilution rate of 1:100 (1%).
  • The solution will be pink in colour, but can lose its colour over time.
  • Add to warm water and leave to completely dissolve (up to 15 minutes).
  • Spray all surfaces with the solution and leave for a minimum of 60 seconds.
  • Rinse surfaces or equipment with fresh water prior to contact with fish.
  • Discard solution after a maximum of 1 week or when heavy soiling occurs.
  • Efficacy is irrespective of colouration of the solution.
Disinfection of equipment (1%)
Quantity of
solution required
Number of
tablets to add
5 litre 10
10 litre 20
20 litre 40



Virasure has been tested and proved effective against a range of viruses. Please see below for pathogen information and the effective dosage for eradication.

Pathogen type Disease Test Method Effective Dilution Used
Birnavirus Infectious Pancreatic Necrosis (IPN) EN 14675-2005 1/200 @ 4oC with simulated high soiling
Rhabdovirus Viral Haemorrhagic Septicaemia (VHS) EN 14675-2005 1/200 @ 4oC with simulated high soiling
Orthomyxovirus Infectious Salmon Anaemia (ISA) EN 14675-2005 1/200 @ 4oC with simulated high soiling
Aeromonas Salmonicida Furunculosis BS EN 1656:2000 1/100 @10oC
Renibacterium Salmoninarum Bacterial Kidney Disease BS EN 1656:2000 1/100 @10oC
Yersinia Ruckeri Enteric Red Mouth BS EN 1656:2000 1/100 @10oC
Flavobacterium Psychrophilum Rainbow Trout Fry Syndrome BS EN 1656:2000 1/100 @10oC
Moritella Viscosa Associated With Winter Lesion Syndrome BS EN 1656:2000 1/100 @10oC
Pasteurella Skyensis Pasteurellosis BS EN 1656:2000 1/100 @10oC
Nocardia Asteroides Nocardiosis BS EN 1656:2000 1/100 @10oC
Mycobacterium Chelonae Atypical Mycobacteriosis BS EN 1656:2000 1/100 @10oC
Listeria Monocytogenes Listeriosis BS EN 1276:1997 1/100 @10oC


Courier Delivery: Next Working Day Service (for in stock items)
Courier Delivery Saturday Delivery Service
Royal Mail - First & Second class: 1-3 Working Day Service

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An item will be noted as In stock when you select the product and size you require. Available items are usually in stock that day or within 1-2 working days, with the exception of some bulkier or high value items.
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