---
product_id: 52887217
title: "– Aquatic Disinfectant Tablets for Fish Ponds & Koi Health – 50 x 5g Broad-Spectrum Virucide Kills KHV, WSSV, Bacteria & Fungi – DEFRA Approved Biosecurity Treatment for Nets, Gear & Systems"
brand: "virkon"
price: "VT17330"
currency: VUV
in_stock: true
reviews_count: 8
category: "Virkon"
url: https://www.desertcart.vu/products/52887217-aquatic-disinfectant-tablets-for-fish-ponds-and-koi-health-50
store_origin: VU
region: Vanuatu
---

# 99.9% pathogen kill rate Biodegradable, eco-safe formula Pre-measured 5g tablets – Aquatic Disinfectant Tablets for Fish Ponds & Koi Health – 50 x 5g Broad-Spectrum Virucide Kills KHV, WSSV, Bacteria & Fungi – DEFRA Approved Biosecurity Treatment for Nets, Gear & Systems

**Brand:** virkon
**Price:** VT17330
**Availability:** ✅ In Stock

## Summary

> 🛡️ Defend your pond like a pro—because your koi deserve nothing less!

## Quick Answers

- **What is this?** – Aquatic Disinfectant Tablets for Fish Ponds & Koi Health – 50 x 5g Broad-Spectrum Virucide Kills KHV, WSSV, Bacteria & Fungi – DEFRA Approved Biosecurity Treatment for Nets, Gear & Systems by virkon
- **How much does it cost?** VT17330 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/52887217-aquatic-disinfectant-tablets-for-fish-ponds-and-koi-health-50)

## Best For

- virkon enthusiasts

## Why This Product

- Trusted virkon brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Elite Pathogen Defense:** Broad-spectrum virucide kills KHV, ISA, WSSV & bacteria to safeguard your aquatic investment.
- • **Eco-Friendly Powerhouse:** Oxygen-based chemistry breaks down into harmless residues, protecting sensitive species and ecosystems.
- • **DEFRA-Approved Assurance:** Officially certified for notifiable disease control, trusted by pros and hobbyists alike.
- • **Rapid Gear Sterilization:** 10-minute soak disinfects nets, boots & gear without damage or harsh chemicals—ready when you are.
- • **Precision Dosing, Zero Guesswork:** Each tablet delivers a perfect 1% solution for consistent, foolproof biosecurity every time.

## Overview

Virkon Aquatic Disinfectant Tablets offer professional-grade, DEFRA-approved biosecurity for fish ponds and aquaculture. Each 5g tablet creates a potent 1% oxygen-based disinfectant solution that kills 99.9% of viruses, bacteria, and fungi including KHV and ISA. The biodegradable formula is safe for sensitive species and rapidly disinfects aquatic gear in just 10 minutes, ensuring disease prevention without toxic residues. Trusted by fisheries and koi enthusiasts, it delivers precise dosing and eco-conscious protection to maintain healthy aquatic environments.

## Description

Product description Virkon Aquatic Professional Biosecurity Tablets DEFRA-APPROVED PATHOGEN CONTROL FOR AQUACULTURE AND KOI HEALTH Virkon Aquatic Tablets (50 x 5g) represent the gold standard in professional-grade biosecurity. Originally engineered for the UK aquaculture industry, this broad-spectrum virucidal disinfectant is scientifically formulated to eliminate the most resilient aquatic pathogens. It is a critical line of defense against Koi Herpesvirus (KHV), Infectious Salmon Anaemia (ISA), Spring Viraemia of Carp (SVC), and Aeromonas, ensuring the safety of high-value livestock in ponds, hatcheries, and fisheries. ADVANCED OXYGEN-BASED CHEMISTRY Unlike traditional chlorine or bleach-based treatments that leave toxic residues, Virkon Aquatic utilizes a synergistic blend of organic salts and acids. This powerful oxidative chemistry achieves a 99.9% kill rate against viruses, bacteria, fungi, and moulds without compromising the delicate ecosystem of your pond. The active ingredients decompose rapidly into harmless potassium salts and oxygen, making it an environmentally responsible choice that aligns with modern farm discharge requirements and water quality standards. PRECISION DOSING FOR GEAR AND WATER SYSTEMS Each 5 gram tablet provides a foolproof, pre-measured dose to eliminate the risk of under-dosing or chemical wastage. For Equipment Sterilization: Dissolve 1 tablet per 500ml of water to create a potent 1% solution. Ideal for a 10-minute rapid-soak of nets, waders, boots, and filtration components to prevent cross-contamination between aquatic environments. For Pond Conditioning: Apply at a rate of 1 tablet per 1,000 gallons (approx. 5,000 litres) to significantly reduce waterborne bacterial loads. This specialized formula is safe for sensitive species, including Orfe and Sturgeon, and will not inhibit biological filtration when used at recommended rates. TRUSTED BY PROFESSIONALS AND ANGLERS Whether you are a commercial salmon producer, a sport fishery manager, or a dedicated koi enthusiast, Virkon Aquatic provides a documented trail of biosecurity. It is fragrance-free, non-irritating to skin upon dilution, and effective even at low water temperatures. Protect your aquatic investment with the world’s most proven veterinary disinfectant technology, designed to stop disease transmission before it starts. Directions Add one Virkon Aquatic tablet to every 500ml of water. Full directions for use on tub

Review: Great - Exactly as described, used to dose the koi pond. Cleared it up in 1 dose
Review: Seems to work - After 20 years of keeping pond fish, had some kind of bacterial outbreak this year and lost quite a few fish. Whilst this doesn't treat or save the actual infected fish (I tried), believe it still arrested the problem within the pond and didn't seem to affect other fish or anything else, including the biological cycle. Have used it a couple of times at dose of 2 or 3 grams (half a tablet) per 1000 litres of water. Going forward will use it as a preventative in the Spring as that's when the highest risk occurs.

## Features

- Causes serious eye damage.
- Causes skin irritation.
- May cause respiratory irritation.
- Use biocides safely. Always read the label and product information before use.
- ELIMINATE AQUATIC PATHOGENS - This broad-spectrum virucide kills KHV, ISA, and Aeromonas. The oxygen-based formula targets viruses, bacteria, and fungi to prevent disease outbreaks in koi fish ponds.
- PRE-MEASURED DOSING TABLETS - Each 5g tablet creates 500ml of 1% solution for equipment sterilization. This format eliminates weighing errors, ensuring consistent biosecurity for sanitizing nets and waders.
- SAFE BIODEGRADABLE FORMULA - Organic salts and acids break down into oxygen and potassium without toxic residues. It is safe for sensitive species like Orfe and Sturgeon when used as a pond conditioner at directed rates.
- DEFRA APPROVED BIOSECURITY - Officially approved for notifiable disease control in the UK. It meets international aquaculture standards for professional infection control in fisheries, hatcheries, and hobbyist ponds.
- FAST ACTING GEAR CLEANER - A 10-minute soak provides complete surface disinfection for aquatic gear. The fragrance-free, non-irritating formula treats nets and boots quickly without damaging specialized fishery materials.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00969EARA |
| Best Sellers Rank | 8,681 in Pet Supplies ( See Top 100 in Pet Supplies ) 103 in Aquarium Water Treatments |
| Brand Name | Virkon |
| Customer Reviews | 4.6 4.6 out of 5 stars (155) |
| Item Form | Tablets |
| Item Weight | 5 Grams |
| Liquid Volume | 500 Millilitres |
| Manufacturer | Bradan Limited |
| Manufacturer Part Number | OB-S6PA-VOSI |
| Model Number | OB-S6PA-VOSI |
| Pet Type | Amphibian, Fish |
| Target Species | Fish |
| Unit Count | 250 gram |

## Product Details

- **Brand:** Virkon
- **Item form:** Tablets
- **Item weight:** 5 Grams
- **Liquid volume:** 500 Millilitres
- **Manufacturer:** Bradan Limited

## Images

![– Aquatic Disinfectant Tablets for Fish Ponds & Koi Health – 50 x 5g Broad-Spectrum Virucide Kills KHV, WSSV, Bacteria & Fungi – DEFRA Approved Biosecurity Treatment for Nets, Gear & Systems - Image 1](https://m.media-amazon.com/images/I/71czSQTRRkL.jpg)

## Questions & Answers

**Q: Can they be used in a pond which has Golden Orfe in it.**
A: There is no reason not to use VIRKON AQUATIC with Golden Orfe however like all other species it is important to follow the written instructions of our vet.

**Q: Can you use this in low temperature like in the winter**
A: I only add to my pond in spring and summer when water temperature has risen at one tablet per thousand gallons.

**Q: How many tablets for a 900l pond and are they sturgeon safe?**
A: Hi Richard sorry for the late reply. We use a ratio of 1 tablet per 1000 gallons. We have one sturgeon and it doesn’t seem to have any impact on him. We have been using this product in our koi pond for many years and have always been happy with it. We also use malachite and formulin. Blanket answer to keep the blanket weed at bay. Hope this helps.

**Q: how many tubs do you get?**
A: You need to know the capacity of your pond.  1 tablet weekly serves 1,000 galls., and there are 50 in a (my) tub.  Don't buy too many at once because they do have a 'use by' date.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great
*by B***G on 14 January 2026*

Exactly as described, used to dose the koi pond. Cleared it up in 1 dose

### ⭐⭐⭐⭐⭐ Seems to work
*by F***K on 20 October 2025*

After 20 years of keeping pond fish, had some kind of bacterial outbreak this year and lost quite a few fish. Whilst this doesn't treat or save the actual infected fish (I tried), believe it still arrested the problem within the pond and didn't seem to affect other fish or anything else, including the biological cycle. Have used it a couple of times at dose of 2 or 3 grams (half a tablet) per 1000 litres of water. Going forward will use it as a preventative in the Spring as that's when the highest risk occurs.

### ⭐⭐⭐⭐⭐ Effective Precaution
*by D***D on 23 February 2024*

These tablets can be used in 2 ways: 1) Precautionary measure to reduce the bacterial & viral load on the pond without any discernible effect on the biological media in filters. 2) Disinfection of nets and equipment to prevent cross or re-infection, particularly during and after an outbreak It is relatively simple to use; just put the required dose (which is specified on the pack and online) in a bucket add just boiled water, stir thoroughly, leave to cool (you could add some cold pond water to hasten this cooling) then add evenly over the pond surface. You can repeat this process up to the point mixing and cooling to use as a disinfectant (the dose will be significantly higher and must not be put in the pond at this level), the disinfectant mixture will last at least a couple of days giving ample time to treat all of the required equipment by soaking etc.

## Frequently Bought Together

- Virkon Aquatic Tablets. 50 x 5 Gram. Broad Spectrum Virucidal Disinfectant
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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-06*