NT Labs Formaldehyde
| Size | 1 Litre, 2.5 Litre, 250ml, 500ml |
|---|---|
| Brand |
NT Labs Formaldehyde is a liquid pond treatment for eliminating external parasites and protozoan infections in fish, maintaining fish health and pond safety.
Price range: £10.99 through £40.99 (inc VAT)
NT Labs Formaldehyde
Liquid Parasite Treatment for Pond Fish
NT Labs Formaldehyde is a powerful liquid treatment designed to target and eliminate parasites in pond fish. Its unique ability to penetrate the mucus layer allows it to reach parasites that may be protected from other bath treatments. It can also be combined with Malachite for enhanced treatment of protozoan parasites. Recommended for fish exhibiting symptoms such as white spots, flicking, rubbing, gasping, or an opaque film on the body.
Effective Parasite Treatment
Penetrates the mucus layer for maximum efficacy.
Benefits include:
- Treats external parasites effectively
- Can be combined with Malachite for protozoan infections
- Reduces stress from parasitic infestations
- Safe when used as directed
- Improves overall fish health during treatment
Easy Application and Monitoring
Designed for straightforward use while ensuring fish safety.
Benefits include:
- Shake well before use
- Mix correct dosage in a bucket of pond water
- Pour evenly over the pond surface
- Monitor water quality with NT Labs Test Kits
- Aerate pond and switch off UV during treatment
How To Use
- Check water quality with NT Labs Test Kits
- Mix the correct dosage in a clean bucket of pond water
- Evenly distribute around the pond
- Leave treatment in pond for 7 days
- Switch off UV filtration for 5 days
- Aerate pond well
- Reassess if repeat dose is needed
- Use with Malachite if required
Dosage Instructions
- 250ml – Treats 17,050 litres / 3,750 gallons
- 500ml – Treats 34,100 litres / 7,500 gallons
- 1 Litre – Treats 68,200 litres / 15,000 gallons
- 2.5 Litre – Treats 170,500 litres / 37,500 gallons
Product Specifications
- Product Type: Liquid parasite treatment
- Function: Eliminates external parasites and protozoan infections
- Form: Liquid
- Application: Direct pond dosing
- Suitable For: Ornamental and koi ponds
- Category: NT Labs Treatments
Safety Information
- Do not use with orfe, rudd, tench, or sturgeon/sterlet
- Avoid use in water above 30°C
- Do not apply during hot, humid, or thundery conditions
- Only mix with Malachite if instructed
- Keep out of reach of children
- Follow dosage instructions carefully
Key Benefits
- Treats external parasites and protozoans
- Penetrates mucus for effective parasite removal
- Reduces stress from infection
- Can be combined with Malachite for enhanced effect
- Maintains fish health during treatment
- Easy to apply and monitor
- Works in a wide range of pond conditions
- Complements long-term fish care routines
- Enhances pond biosecurity
- Safe when used according to instructions
Ideal For
- Koi ponds
- Ornamental ponds
- Ponds with signs of external parasites
- Protozoan parasite outbreaks
- Preventative parasite management



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