Kusuri Powder Gold – Professional Blanket Weed & String Algae Eradicator

If you have struggled to get rid of blanket weed fast, Kusuri Powder Gold is the definitive solution used by professional koi keepers at Leeds Koi and Pond Centre. Unlike standard biological treatments that rely on warm weather, Powder Gold is a high-strength string algae treatment that delivers visible results in days, regardless of the season.

Whether you have a mild green water issue or a severe string algae infestation, this pond algae remover targets the weed at the source while remaining completely safe for sensitive species like Sturgeon and Orfe when used as directed.

Why Choose Kusuri Powder Gold Over Alternatives?

In the UK, many “Gold” treatments are just basic minerals. Kusuri Powder Gold is a regulated algaecide (HSE 9777) that actually eradicates the cellular structure of the weed. Here is how it compares to other options:

• Powder Gold vs. Liquid Gold: While Liquid Gold is convenient for small ponds, Powder Gold is significantly more cost-effective for larger koi collections and offers a more thorough “deep clean” of the pond walls and pipework.
• All-Season Performance: Works effectively in cold water (below 10°C) where biological products like Eco Pure would go dormant.
• Crystal Clarity: It doesn’t just kill weed; it aids in flocculating fine particles, often resulting in “gin-clear” water after the treatment cycle.

Step-by-Step: How to Use Kusuri Powder Gold Safely

Common mistakes can lead to oxygen drops or reduced effectiveness. Follow these expert steps for the best results:

1. Pre-Clean: Remove as much physical blanket weed as possible by hand or with a brush before dosing. This prevents a massive “sludge bomb” when the weed dies.
2. The Mixture: Fill a clean 10-litre watering can with pond water. Add the correct dosage and stir thoroughly until dissolved.
3. Distribution: Pour the mixture evenly across the pond surface.
4. The UV Rule: You must switch off your UV Clarifier for 7 days. If left on, the UV light will neutralise the active ingredients before they can work.
5. Aeration: Dying algae consumes high levels of oxygen. Ensure your air pumps are running at maximum power during the treatment.

Dosage Guide & Gallon Conversion

Do not overdose. 1kg of Powder Gold treats up to 20,000 litres (approx. 4,400 gallons). For smaller ponds, use our conversion guide below:

Timeline: What to Expect

• 24–72 Hours: You may notice slight clouding of the water. This is normal and shows the treatment is reacting with the algae.
• Day 4: Blanket weed will turn brown or grey as it dies off.
• Day 7: Full results are usually visible. If the infestation was severe, vacuum the dead waste from the bottom of the pond.

⚠️ Important Safety & Compliance Info

As a professional-grade treatment, please note the following safety precautions:

• Fish Safety: Safe for Koi, Goldfish, Sturgeon, and Orfe. Do not use in ponds containing Rudd.
• Wildlife Ponds: Not recommended for ponds with frogs, toads, or newts.
• Environmental: This is a regulated algaecide (HSE 9777). Do not discharge treated water into natural watercourses or drains.
• Storage: Keep the container tightly sealed in a cool, dry place away from children.

Frequently Asked Questions

Common Mistake: “I used it and it didn’t work.”
Most often, this is because the UV lamp was left on, or the dosage was calculated incorrectly. If you have extremely hard water, you may require a second dose after 7 days.

Is it safe for my water lilies?
Yes. Unlike some harsh chemicals, Powder Gold is selective. It targets string algae but is safe for lilies and marginal plants at the recommended dose.

Can I use it in winter?
Yes. While biological products stop working below 10°C, Kusuri Powder Gold is effective in any temperature, making it the best choice for early spring clean-ups.

Need more advice? As Leeds’ premier koi specialist, we are here to help. Contact the Leeds Koi team or explore our full range of blanket weed treatments.