NT Labs Malachite

11 reviews

NT Labs Malachite Green helps treat your pond fish for fungal infections and external parasites such as white spot, keeping your fish healthier and happier.


  • Malachite 250ml
    code: 222 Out of stock (Notify me)
  • Malachite 500ml
    code: 232 In stock Only 3 left in stock
  • Malachite 1 LTR
    code: 242 In stock Only 3 left in stock
  • Malachite 2.5LTR
    code: 252 In stock Only 3 left in stock

Product Information

Malachite Green from NT Labs treatment for fungus and external parasites in your pond.

External parasites such as Ichthyopthirius (White spot), Trichodina, Costia, Chilodonella, and Epistylis are frequent troublemakers in the fishpond. They attack and live in the mucous layer of the fish and can cause extensive damage to your fish, even causing fatalities.

For best results use Malachite Green along with NT Labs Formaldehyde to treat all types of fungal and parasitic infections. If combining treatments use 10ml to every 1600l of pond water.

NT Labs advise to only use this treatment twice, if symptoms persist speak to a ponf fish specialist for more advice.

Symptoms of parasitic infection:

  • White patches
  • Fluffy white growths
  • Grey slimy appearance
  • Erratic swimming
  • Scratching against rocks and other decor

To treat these parasitic complaints use 10 ml of Malachite Green for every 176 UK gallons of (800 L) of pond water.

Product Specification

Product Treats Size
NT Labs Malachite 250ml 4400gal/20020ltrs 250ml
NT Labs Malachite 500ml n/a n/a
NT Labs Malachite 1 LTR n/a n/a
NT Labs Malachite 2.5LTR n/a n/a

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