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Koi Care - Malachite

Malachite 250ml
Malachite all
Fluffy white growths, fine white spots
Malachite

Anti-Fungal Treatment for Koi  

Treats: Fungus caused by Saprolegnia

When to use:

  • When fish have white growths on the body, head or fins, which may contain some green or brown discolouration.
  • Malachite can be used in conjunction with Koi Care Formaldehyde to treat fungal infections more effectively.
  • Suitable for koi only.

Do:

  • Test your water quality using Pondlab Test Kits.
  • Mix the appropriate dosage in a clean bucket of pond water, pour evenly over the surface of the pond and leave for 7 days. Switch off UV filtration until treatment has been completed. Aerate the pond well during treatment.
  • If you feel a repeat dose is necessary, check your diagnosis carefully using the Diagnosis Tool on our website; a different medication may be more suitable. Allow 7 days and perform a partial water change before re-treating or treating with a different medication.
  • Always treat when you have time to observe fish and take appropriate action in the unlikely event of a bad reaction.
  • If required, mix with Koi Care Formaldehyde prior to adding to the pond, following the instructions above.

Warning:

  • Do not use with orfe, rudd, tench or sturgeon/sterlet.
  • Do not use if the water temperature is above 30°C.
  • Do not use in hot, humid, thundery conditions.
  • Do not mix medications, other than combining with Koi Care Formaldehyde.

Find out about Malachite Green as an active ingredient in our 'What is Malachite Green?' article.

View our medicinal treatment rules

FAQs:

  •  Q: How do I mix Formaldehyde & Malachite Green? A: If you are going to use these 2 products together then simply follow the instructions for each individual product, there is no need to adjust the dosage or to pre-mix the 2 treatments, you can simply apply one product followed by the other at the dosage on the instructions. Alternativley, for ease of use we would reccomend using our pre-mixed F-M-G product.

For common frequently asked questions, click here.

From £11.99

Specifications

Composition

Active Ingredients: Malachite Green 1.0% w/v 

Available in the following variations:

250ml, 500ml, 1 Litre & 2.5 Litre

Where to Buy?

Simplified map of the United Kingdom.

Dosage

Let us calculate your dosage for you!

To make the process of using our products even easier this handy dosage calculator tells you the amount you will need to put into your system. Please ensure you also read the instructions and warnings that are written on the bottle/pack label.

Note: This calculator does not take into account water displacement such as that caused by substrate, ornaments, water features and plants etc. Therefore, please adjust the calculated volume accordingly.

I know my system's measurements and want to:

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Dosage calculator

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You’ll require*
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* Always follow the instructions on the label. This calculator is intended to be used only as a guide to how much product you need to buy to treat your system. It does not take account of displacement caused by gravel, rocks and ornaments etc and does not include the volume of any external filtration system. NT Laboratories Ltd. will not accept any responsibility for inaccuracies or misuse of this guide.

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Reviews

  • Keith Holmes - Koi Waterbarn from Knockholt, Sevenoaks

    Koi Water Barn and NT Labs have a long history of working together, we feel that the products in the Koi Care range offer our customers a quality product at a realistic price. This is backed up by extensive research and development that is carried out at the NT Labs HQ located in Kent. They are not far away from our shop at Coolings (Knockholt, near Sevenoaks), this is an added bonus for our customers as they are buying from a local UK based company.