Blanket Weed Treatment UK | Pond Algae Remover | Treats 10,000L per Litre | Fast Acting

Blanket Weed Treatment — Professional-Strength Liquid Pond Algae Remover

Eliminate blanket weed and stubborn pond algae quickly and effectively with our professional-strength liquid Blanket Weed Treatment — one of the UK's best-selling and most highly regarded pond algae solutions, independently endorsed as a leading pond treatment product. Blanket weed (Cladophora or Spirogyra) is the bane of UK pond keepers, spreading rapidly in warm, nutrient-rich water and quickly smothering pumps, filters, aquatic plants and pond liners. Left untreated, it depletes oxygen, traps fish and chokes the natural balance of your pond ecosystem. Our concentrated liquid formula gets to work immediately on contact, targeting the blanket weed's cellular structure and breaking it down within days — without harming your fish, aquatic plants, frogs or other pond wildlife when used as directed. At 1 litre treating up to 10,000 litres of pond water, it offers exceptional value and consistent, professional results.

Technical Specifications

Key Benefits

• ⚡ Fast-acting formula — starts working on contact with algae; visible blanket weed die-back within days of treatment
• 💰 Outstanding coverage — 1 litre treats up to 10,000L, making it one of the most economical pond algae treatments available
• 🐟 Fish and wildlife safe — formulated to be safe for koi, goldfish, frogs, newts, water birds and garden pets when used as directed
• 🌿 Targets blanket weed specifically — effectively eliminates the stringy green weed that chokes pond pumps, filters and plants
• 💧 Improves oxygen levels — removing dense blanket weed coverage restores oxygen exchange at the water surface
• 🔄 Prevents regrowth — used regularly as part of a maintenance programme, significantly reduces blanket weed reoccurrence
• 📏 Easy liquid dosing — simple liquid format with clear dosing instructions; no dissolving required
• 🏆 Trusted by UK pond keepers — independently endorsed, consistently 4.5+ star rated across thousands of UK reviews

Types of Algae Treated

• Blanket weed (filamentous algae) — the primary target; the thick, stringy green algae that forms dense mats
• Spirogyra — a common blanket weed species with a silky, silky texture
• Cladophora — rough-textured blanket weed that clings to pond surfaces
• Green water algae — suspended single-cell algae causing green discolouration
• String algae — free-floating filamentous algae on the water surface

How to Use

1. Calculate pond volume — length (m) × width (m) × average depth (m) × 1000 = litres
2. Measure the correct dose — use the dosage guide below; always start with the lower dose for first treatments
3. Dilute before applying — mix measured dose with 1–2 litres of pond water in a watering can
4. Apply evenly — pour slowly around the pond edge and directly onto visible blanket weed patches
5. Ensure good aeration — run pumps and aeration at full capacity during and for 48 hours after treatment
6. Remove dead algae — net out dead blanket weed after 5–7 days to prevent it decomposing and re-feeding new growth
7. Repeat if necessary — a second treatment after 14 days is safe for heavy infestations

Dosage Guide

Safety Precautions

• Always read the label before use and follow dosing instructions precisely
• Do not exceed recommended dose — overdosing can deplete oxygen levels
• Ensure pumps and aeration are running before, during and after treatment
• Do not treat in very hot weather (>25°C) when oxygen levels are already reduced
• Remove dead algae promptly to prevent oxygen depletion as it decomposes
• Not for use in drinking water supplies or as a fish medication

Why Choose Our Blanket Weed Treatment?

With over 3,200 customer reviews and, our blanket weed treatment stands apart from cheaper, less effective alternatives. Koi specialists, professional pond landscapers and enthusiastic garden pond owners across the UK consistently choose this product as their go-to blanket weed solution — and for good reason. The concentrated formula delivers professional-grade results at a fraction of the cost of pond contractor visits. Available in 1L, 2.5L and 5L sizes to suit ponds of all scales. Free UK delivery included.

💬 "Blanket weed had completely taken over my pond — pump kept blocking, fish were barely visible. One treatment, waited 5 days, netted it out and the pond looks incredible. Absolutely brilliant product." — Verified UK Customer