Free delivery on orders over £75
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Same day dispatch before 2pm
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NT Labs Formaldehyde

Code: MD114, MD115, MD116, MD117

NT Labs Formaldehyde is a pond treatment for white spot, Trichodina, Costia and Chilodonella. Available in 250ml, 500ml, 1 litre and 2.5 litre bottles for whole‑pond use.

Price range: £11.95 through £39.95

Product Description

When fish are flicking, gasping or showing white spots, parasites are often the cause. NT Labs Formaldehyde is formulated to treat common protozoan parasites in pond fish .

It works by penetrating the mucus layer, reaching parasites that may be protected from some alternative bath treatments .

Treats

  • White spot
  • Trichodina
  • Costia
  • Chilodonella

It can also be used in conjunction with Malachite to treat protozoan parasites more effectively .

When to use

Use when fish show symptoms of a parasitic infection, including:

  • White spots along the fins and body
  • Flicking and rubbing
  • Gasping at the surface
  • An opaque film over the body

Early treatment gives you the best chance of restoring balance quickly.

Why it’s a good choice

  • Targets common protozoan parasites
  • Suitable for whole‑pond treatment
  • Can be combined with Malachite where appropriate
  • Available in multiple sizes for flexibility

Safety first

Formaldehyde is a strong treatment and must be handled carefully:

  • Read and follow the label instructions exactly.
  • Calculate pond volume accurately before dosing.
  • Do not eat, drink or smoke while handling chemicals.
  • Wear disposable gloves and appropriate eye protection.
  • Switch off or bypass UV‑C during treatment unless the manufacturer states otherwise.

Good aeration during treatment is strongly recommended.

NT Labs Koi Care Formaldehyde Dose Rates:
– NT Labs Koi Care Formaldehyde 250ml – Treats 17050 litres / 3750 gallons
– NT Labs Koi Care Formaldehyde 500ml – Treats 34100 litres / 7500 gallons
– NT Labs Koi Care Formaldehyde 1 Litre – Treats 68200 litres / 15000 gallons
– NT Labs Koi Care Formaldehyde 2.5 Litre – Treats 170500 litres / 37500 gallons

Delivery Details

Delivery Charges
We offer two simple delivery options:

  • Free shipping on all orders over £75
  • Flat rate of £3.95 for lighter parcels on orders under £75
  • Flat rate of £5.50 for heavier parcels on orders under £75

All deliveries are sent via Royal Mail, ensuring reliable and trackable service.

Delivery Times
Orders are usually dispatched within 1–2 working days. Once shipped, Royal Mail typically delivers within 2–4 working days. Please note that during peak times or in the event of postal delays, delivery may take slightly longer.

Delivery Locations
We currently ship to UK addresses only, including mainland UK and Northern Ireland.

Read full shipping policy.

Questions?

We’re here to help. If you have any questions about your delivery, email us at mskoiltd@outlook.com and our customer service team will be happy to assist.

Free delivery on orders over £75

Enjoy free standard delivery when you spend £75 or more.

Easy
Returns

Hassle-free returns if something is not quite right.

Same Day Dispatch

Orders placed before 2pm are dispatched the same day.

Dedicated Support

Friendly support whenever you need help or advice.

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