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NT Labs Formaldehyde

NT Labs Formaldehyde

Regular price £12.99
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NT Labs Koi Care Formaldehyde is an excellent anti-parasite treatment, particularly when mixed with Malachite.

Formaldehyde is effective against protozoan parasites and flukes. It is especially useful in treating flukes because of it's ability to penetrate mucus and reach the parasites that would otherwise be protected from other bath treatments. This treatment contains a high level of 30% for the best results.

When parasite infections such as Ichthyopthirius white spot, Trichodina, Costia, Chilodonella, and Epistylis are suspected the best treatment is a mixture of Malachite Green and Formaldehyde. NT Labs have a ready mixed FMG treatment. However some external parasites such as the flukes Gyrodactylus and Dactylogyrus are best controlled using Formaldehyde alone.

Add 10 ml of Malachite Green, to every 352 gallons (1600 litres) of pond water and 10 ml Formaldehyde to every 150 gallons (681 litres). This is a strong one shot treatment, and is thus not suitable for use with those systems that contain sensitive species such as orfe, sterlet, rudd or tench. Caution: Formaldehyde is a hazardous chemical and should be handled with great care, please read the warnings on the label carefully.

Instructions for use:

When these parasites are suspected apply Formaldehyde at 10ml per 150 gallons (681 litres) of pond water.

250 ml treats 17,048 litres (3750 gallons). The 2.5 litre bottle will give up to seven treatments of 25,000 litres at a time. So the 2.5 litres gives you 10 times the treatment but at less than six times the price.

Key Features:

  • 7 Day Application for persistent parasite infections
  • Highly concentrated
  • Treats white spot, costia, trichodina
  • Can be mixed with Malachite
  • Can be used on its own against flukes
  • 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.

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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.

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