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NT Labs Koi Care FMG Mixture

NT LABS koi care FMG Mixture: Formaldehyde and Malachite green mix.

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Product Description

The following options are available from Aquacadabra:

  • 250ml (treats 2000 gallons)
  • 500ml (treats 4000 gallons)
  • 1 Litre (treats 8000 gallons)
  • 2.5 Litres (treats 20,000 gallons)

NT LABS koi care FMG Mixture: Formaldehyde and Malachite green mix. Malachite green and formaldehyde are the best treatment for common external parasitic infections. Instead of using these two medications separately and worrying about the incorrect dosing and 5 day courses etc then why not use this (FMG MIXTURE).

This is a very strong mixture of the 2 anti-parasite agents that are applied to the pond or treatment tank only once.

The treatment lasts the full 5 days required to kill all free swimming and emergent ecto parasites.

CAUTION: due to the strength of this treatment it only needs to be applied once.

Also as its so strong do not use with sensitive fish like orfe, sterlets, tench and rudd etc.


Aquacadabra acts as credit broker/intermediary and not as a lender.

Klarna's credit products are provided by Klarna Bank AB, which is authorised and regulated by the Swedish Financial Services Authority, with limited supervision by the Financial Conduct Authority. More information can be found here.

Newpay finance options are provided through Deko’s platform by NewDay. P.D. Aquatics Ltd, t/a Aquacadabra is an Introducer Appointed Representative of Pay4Later Ltd, t/a Deko, which is authorised and regulated by the Financial Conduct Authority (ref no 728646) and is a credit broker, not a lender. NewDay Ltd is authorised and regulated by the Financial Conduct Authority (ref no 690292) and is authorised by the Financial Conduct Authority under the Payment Services Regulations 2017 for the provision of payment services (ref no 555318). More information can be found by clicking the newpay option above, or in the Newpay FAQs.

Delivery & Returns

We really want you to be happy with the product that you've received. If however, when the goods arrive they're not what you want, then no problem - we have a 60 day no quibble return guarantee. Just let us know that you're going to return the item(s) by contacting us (stating your Order Number) and complete the returns packing slip that will have been included with your delivery. This will help us to quickly identify the item that you have returned (unopened and unused) - and we'll put a refund through for you.


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