Best Pond Care Water Treatment Deals Online in the UK (25 Deals Found)

Last Updated - 19/02/2026 Sort By:

Best Choice
envii

New
Envii Winter Pond Treatment – Reduce Sludge & Improves Water Clarity, Works at Low Winter Temperatures, Natural Bacteria
Clears Sludge & Treats Green Water – Envii Winter Pond Treatment provides billions of beneficial bacteria & enzymes to y

£16.95
Best Value
envii

New
Envii Pond Klear - Natural Green Pond Water Treatment, Clears Green and Murky Water for Crystal Clear Healthy Water, Saf
Clears Green & Murky Pond Water - Pond Klear clears green and murky water by targetting microscopic particles and nutrie

£15.95
New
NT LABS KOI CARE FMG MIXTURE GARDEN FISH POND TREATMENT ANTI PARASITE AND FUNGUS
With options ranging from 250 ml to 2.5 litres, it caters to ponds of all sizes. Why Choose NT Labs FMG Mixture It’s per

£53.40
Blagdon

New
Blagdon Green Away Pond Water Treatment, Clears Green Water and Suspended Algae Particles, Natural, Plant Friendly, Safe
CLEARS GREEN POND WATER – Green Away rapidly clears green water by clumping together suspended particles of algae causin

£7.95
New
Tetra Pond Aquasafe Water Conditioner Dechlorinator Treatment Fish Koi Clarity
Tetra Pond AquaSafe makes tap water safe for fish, and reliably protects fish and plants in ponds against harmful substa

£12.99
Blagdon

New
Blagdon Green Away Pond Water Treatment, Clears Green Water and Suspended Algae Particles, Natural, Plant Friendly, Safe
CLEARS GREEN POND WATER – Green Away rapidly clears green water by clumping together suspended particles of algae causin

£7.95
envii

New
Envii Pond Klear - Natural Green Pond Water Treatment, Clears Green and Murky Water for Crystal Clear Healthy Water, Saf
Clears Green & Murky Pond Water - Pond Klear clears green and murky water by targetting microscopic particles and nutrie

£12.95
New
AquaDesign POND SAFE 2500ml Fish Tap Safe Water Dechlorinator TREATS 62,500Litre
Your pond is a sanctuary of natural beauty, and AquaDesign Pond Tap Safe is here to ensure that it remains just that. We

£19.99
envii

New
Envii Pond Klear Xtra – Strong Pond Clear Water Treatment, Naturally Clears Green Pond Water – Treats Up To 100,000 litr
Multipurpose Pond Treatment – Pond Klear Xtra is a multipurpose treatment helping clear green & murky water, maintain he

£31.95
New
BACTOPLUS FRESH PSB LIVING BACTERIA WATER TREATMENT KOI FISH SAFE POND FILTER 2L
Improves water quality and clarity by removing ammonia and other organic waste from your pond water, resulting in a heal

£27.99
Evolution Aqua

New
Evolution Aqua Pure Duo Pack Pond Bomb & Sludge Bomb Pond Clear Water Treatment Pond Sludge Remover - Duo Value Pack Off
✔ Contains 1 x PURE Sludge Bomb, 1 x PURE Pond Bomb - A perfect combination of aerobic and anaerobic bacteria and enzyme

£23.49 £24.95
Evolution Aqua

New
Evolution Aqua Pure Pond Bomb – for Crystal Clear Healthy Water, Treats up to 20,000 litres
✔ NATURAL, CHEMICAL FREE SOLUTION FOR CRYSTAL CLEAR, HEALTHY POND WATER – Pure Pond Bomb contains beneficial bacteria an

£14.95 £15.99
New
NT Labs Koi Care Acriflavin Finrot Ulcer Moth Rot General Treatment Pond Fish
Ponds naturally contain billions of bacteria, both beneficial and harmful. While helpful bacteria break down toxic fish

£11.90
16% Off
Evolution Aqua

New
Evolution Aqua Pure Pond Bomb – for Crystal Clear Healthy Water, Treats up to 20,000 litres
✔ NATURAL, CHEMICAL FREE SOLUTION FOR CRYSTAL CLEAR, HEALTHY POND WATER – Pure Pond Bomb contains beneficial bacteria an

£13.45 £15.99
New
NT LABS CHLORAMINE T KOI CARE PARASITE & BACTERIA TREATMENT POND FISH KOI GARDEN
It’s especially effective during colder months, when fish immune systems are weaker. Use in autumn and spring to manage

£35.90
AquaDesign

New
AquaDesign POND SAFE 1000ML Pond Tap Water Conditioner Dechlorinator Chlorine Remover TREATS 25,000 Litres
Removes chlorine, chloramine and heavy metals

£14.99
New
Envii Algae Klear Xtra Pond Blanketweed Algae Treatment All Year Round Fish Safe
Envii Algae Klear Xtra. From removing the sludge from your pond to helping your garden grow, our products are natural an

£104.95
New
NT Labs Koi Care Chloramine T 50g 250g 440g Pond Fish Treatment Anti Bacteria
NT Labs Koi Care Chloramine T reduces bacteria and parasites in pond water. Use NT Labs Koi Care Chloramine T during col

£31.21
New
NT Labs Koi Care F-M-G 250ml 500ml 1000ml 2500ml 1L 2.5L Pond Parasite Treatment
Products Outdoor Koi Care FMG Mixture. Test your water quality first using Pondlab test kits. When fish show symptoms of

£106.95
New
Vanquish Fish Pond Fungus & Bacteria Water Disease Treatment Koi Aquacadabra
Aquacadabra Vanquish Fungus & Bacteria is a comprehensive pond water disinfectant designed to tackle harmful bacteria th

£28.99
New
NT Labs Koi Care Malachite Pond Water Treatment
External parasites such as Ichthyopthirius (White spot), Trichodina, Costia, Chilodonella, and Epistylis are frequent tr

£22.79
New
Oase Safe & Care Water Treatment Bio-Protection Colloids Pond
Ensure the clarity and health of your pond with Oase Safe & Care Water Treatment Bio-Protection Colloids. Specifically d

£8.54
New
Garden Genie - Pond Cleaner Clarifier | Water Treatment | Reduce Sludge, Clears
Advanced Clarity Technology: Our Pond Cleaner Clarifier utilizes cutting-edge clarity technology to quickly eliminate su

£11.10
New
Swell UK Pond Care Bundle - Control Blanketweed, Greenwater & Sludge Treatments
6 x Blanketweed Single Sachets. Sludge is a build up of biological waste from fish, plants and other pond debris. It can

£24.29
New
AquaDesign POND SAFE 1000ML Fish Tap Safe Water Dechlorinator TREATS 25,000Litre
Your pond is a sanctuary of natural beauty, and AquaDesign Pond Tap Safe is here to ensure that it remains just that. We

£14.99

25 Pond Care Water Treatment deals are available from: Amazon, eBay stores, starting from £7.95.
The biggest discount we found is 16% on Evolution Aqua Pure Pond Bomb – for Crystal Clear Healthy Water, Treats up to 20,000 litres at Amazon.
The lowest price we found is £7.95 while the highest is £106.95.
Prices for the best Pond Care Water Treatment deals average at £27.06.
Last updated on February 19, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Pond Care Water Treatment.