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NT Labs Filter Bugs

NT Labs Filter Bugs

Regular price £12.99
Regular price £12.99 Sale price £12.99
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NT Labs Koi Care Filter Bugs is an easy-to use liquid formulation, containing a blend of Nitrosomonas, Nitrobacter, Nitrospira and supporting bacterial cultures. These bacteria will populate your filter with nitrifying organisms to ensure efficient biological filtration and perfect, stable water quality.

Add NT Labs Filter Bugs to new ponds to kick start the biological filtration process and regularly to existing ponds and filters to give an added boost to the bacteria which keep the pond healthy and safe for your fish. Filter Bugs are especially useful when ammonia is present for emergency boosting of the filtration system.

Dosage Rates:

- NT Labs Filter Bugs 250ml - Treats 9000 litres / 2000 gallons
- NT Labs Filter Bugs 500ml - Treats 18000 litres / 4000 gallons
- NT Labs Filter Bugs 1 Litre - Treats 36000 litres / 8000 gallons

  • Experience

    We have over 40 years of experience in the industry

  • Koi Kare


    We are koi keepers too!

    We share the same passion as our customers

  • Availability

    We are only a phone call or email away. Do not hesitate to ask us questions - we love sharing our knowledge!

  • Competitive Pricing

    We regularly review our pricing to make sure our rates are fair for our customers

Frequently Asked Questions

How Much Is Delivery?

Our delivery is free for any orders over £100.

For all orders under £100 delivery is £4.99.

How Do I Make A Return?

To start a return, you can contact us at If you have a valid return instructions will be made on how to make the return.

Please do not post a return without contacting us first.

What Is The Best Way To Contact You?

The best way to contact us is via our contact page here.

How Soon Will I Get A Refund If I Make A Return?

Refunds will be processed within 7 days of us receiving and checking the item.

Need Advice?

If you need advice or help with what products to buy, please reach out to us on our contact us page.