NT Labs Formaldehyde

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