WhichOne › DIY store & garden › garden pond › pond accessory › pond clear › pond water clarifier

The best pond water clarifiers in comparison

Guaranteed independent and reliable
Millions of satisfied users every year
Last updated on 06.06.2025

Filter

Sort

Brand:Reduced items only:

Best choice

Biling 40W Pond Filter with UV Clarifier, All-in-One 2500 l/h Water Pump UV Filter Kit Adjustable Water Valve and Nozzles, Clean Up to 4000L Pond Filtration System, Easy Use and Maintain

Biling

free shipping

show more show less

9,9

Check price

Show on Amazon

Features

Easy Installation & Low Maintenance Designed for quick, tool-free setup, this pond filter with pump is perfect for busy pond owners. Its low-maintenance design ensures hassle-free operation and long-lasting performance
Create Stunning Water Features Transform your garden with beautiful fountains or waterfalls using the included 3 spray nozzles. Enjoy soothing water sounds and a captivating focal point in your outdoor space
Complete Pond Filtration Kit Included Includes UV clarifier, filter pad, bio balls, bio ceramic rings, and spray nozzles for comprehensive pond care. Backed by reliable customer support for peace of mind
Warm tip the pump with 3m cord and Type_G_3pin_UK plug

Envii Pond Klear Xtra – Strong Pond Clear Water Treatment, Naturally Clears Green Pond Water – Treats Up To 100,000 litres

envii

free shipping

show more show less

9,8

Check price

Show on Amazon

Features

Multipurpose Pond Treatment Pond Klear Xtra is a multipurpose treatment helping clear green & murky water, maintain healthy sludge levels & help reduces the chance of blanket weed.
Safe for all Fish & Wildlife Like all Envii pond products, Pond Klear Xtra is safe for all fish, wildlife & plants. This can be used in conjunction with all other bacteria treatments.
Easy to use With a built in measuring chamber, applications are really easy. We recommend using 10ml per 1,000 litres of water. This makes for reliable and quick treatments.
Treats a Large Volume of Water Pond Klear Xtra treats up to 100,000 litres of pond water. If your pond is under 20,000 litres, this means you will get multiple treatments to last you through the year.

£ 31.95

£ 36.42

Blagdon 5W Mini-Pond UV Clarifier ,Black

Blagdon

free shipping

show more show less

9,7

Check price

Show on Amazon

Features

Clears green water algae quickly and permanently
High Output PC T5 5 watt lamps
Universal hose fittings

£ 64.99

£ 72.95

£ 82.79

£ 82.79

API POND ECOFIX SLUDGE DESTROYER Pond Water Clarifier and Sludge Remover Treatment 1.89 L Bottle,White

API

15% off

free shipping

show more show less

9,7

Check price

Show on Amazon

Features

Helps to reduce overall pond maintenance and keep pond clean
Contains natural active ingredients to break down fish waste and consume pond sludge
Breaks down dead algae and digests leaves and grass clippings
Use twice a week for two weeks for initial dose , quick clean up and end of season, and once every other week for maintenance

Evolution Aqua Pure Duo Pack Pond Bomb & Sludge Bomb Pond Clear Water Treatment Pond Sludge Remover - Duo Value Pack Offers Complete Natural Pond Water Treatment for Fish Ponds

Evolution Aqua

free shipping

show more show less

9,7

Check price

Show on Amazon

Features

Contains 1 x PURE Sludge Bomb, 1 x PURE Pond Bomb - A perfect combination of aerobic and anaerobic bacteria and enzymes working efficiently together as a complete pond clear water treatment for small ponds, large fish ponds and water features.
Reduces filter and pond maintenance Naturally removes excess smelly organic waste, reducing the need to use chemical algae remover and harsh blanket weed treatments for ponds. Pure Duo Pack Pond Bombs also work as an ammonia and nitrite remover.
Natural fast acting chemical free clear water pond treatment - PURE Pond Bomb contains the perfect formula of aerobic enzymes and bacteria designed to quickly break down organic waste in water, leaving your pond clean and fish healthy.
Award winning product manufactured in the UK Part of the Evolution Aqua award winning range of bacterial products for ponds, freshwater and marine aquariums.

£ 24.95

£ 24.95

£ 29.95

AquaDesign CLEAR POND Water Clarifier 2500ml - Clears Green & Cloudy Water - TREATS 12,500L

AQUADESIGN

show more show less

9,4

Check price

Show on Amazon

Features

AquaDesign POND CLEAR removes haze, cloudiness and green water
Easy to dose Liquid
Fast acting - visible results in under 24 hours
Comes with 3ml pipette for dosing

Tetra Pond Crystal Water, Effectively Clears Dirty Pond Water, 500 ml

Tetra

show more show less

9,3

Check price

Show on Amazon

Features

ERROR #N A
works within a few hours

£ 13.95

£ 19.81

£ 20.49

Pro-Kleen MY1611 Spa Clarifier for Pools and Hot Tubs- Achieve Brilliant, Sparkling Water-Improves Filter Performance & Efficiency 1L, Clear

Pro-Kleen

3% off

free shipping

show more show less

9,3

Check price

Show on Amazon

Features

Contains properties that effectively bind small particles of dirt together
Adds sparkle and clarity to hot tub and spa water - improves filter performance and efficiency
Just add 2 caps of Pro-Kleen Spa Clarifier to your spa water once a week for crystal clear water

£ 10.60

£ 13.95

Aquarium UV light Sterilizer Water Clarifier UV Light Clean Green Algae Pet Dog House Bacteria-Killer UV Sterilizer Lamp for Sump Filter Tank Pond Swim Pool Home Sterilization (7W 10inch in length)

OsAtNb

free shipping

show more show less

9,2

Check price

Show on Amazon

Features

Warm Tips Promise to respond within 12 hours, if you found any question about the product,please contact us,we will solve it for you.
Warning Please use This UV light in sump or filter tank,please DO NOT use uv light in your display tank and koi pond directly,or it will hurt your fish.please read the user manual before ue it.
Easy to use in your filtration system Provide a clean living environment for your fish,this UV sterilizer lamp can be installed in many kinds of filter,such as Koi Pond filter, Hand on back filter,bottom filter tank, sump, swim pool filter

Recommendation

Spellman's Standard Handbook for Wastewater Operators: Volume III, Advanced Level, Second Edition

5% off

free shipping

9,2

Check price

Show on Amazon

This ranking is created through algorithmic analysis of millions of products tailored specifically to your search. We aim to find the most suitable product for you based on manufacturer information and price. The ranking reflects our opinion and should serve as a good starting point for your purchase. We would like to point out that we have not tested the products ourselves and link to selected online shops and partners from which we may receive compensation.

You might also be interested in these pond water clarifiers.

Pennosan Natural Pool Clarifier 1L | The Natural Choice | Non-Chemical Pool Clarifier | For Crystal Clear, Clean Water

THE NATURAL CHOICE - Pennosan Natural Pool Clarifier attracts dirt and oils as well as dissolved metals and germs more effectively than chemical clarifiers! Eliminate algae and other harmful organisms with Pennosan! Swim with the best ... Swim with Pennosan!

free shipping

Check price

allpondsolutions 36w UV Light Steriliser for Pond & Aquarium - CUV-136 Fish Tank & Pond Clarifier - Helps Remove Algae and Greenwater

Suitable for Pond Sizes up to 20,000 Litres. Through Flow sterilisation at 4500 L H

free shipping

Check price

E-ANG.W Stainless Steel Pond Waterfall with Wider Flow Platform, Pool Waterfall Blade for Garden Patio Decoration (23.6in)

304 Polished Stainless Steel This pond fountain built with sturdy stainless steel material which is rustproof keep water leakage away, also it is polished on all sides, makes a delicate garden for you

free shipping

Check price

Garden Genie - Pond Cleaner Clarifier | Water Treatment | Reduce Sludge, Clears Green Algae - Improves Water Clarity 100g, White

Advanced Clarity Technology Our Pond Cleaner Clarifier utilizes cutting-edge clarity technology to quickly eliminate suspended particles and promote water clarity. It works by binding together tiny particles that cloud your water, making it easier for filtration systems to remove them.

Check price

Mathematics Manual for Water and Wastewater Treatment Plant Operators: Wastewater Treatment Operations: Math Concepts and Calculations

free shipping

Check price

Fluval Quick Clear Aquarium Water Clarifier 120 ml

4 fluid ounces

Check price

Aquarium UV Sterilizer Light, 9/15/ 22W ABS Fish Tank Water Clarifier, UV Double Tube Light Algae Remover with 3/6/ 12/ 24h External Timing Controller for Aquarium Pond

High Quality ABS Plastic Shell Protective Cover, IPX68 waterproof, the Back Side Is Illuminated to Avoid Ultraviolet Light Direct Rays

free shipping

Check price

Oase Vitronic 11W UVC Clarifier

Effective elimination of green algae, pathogens and bacteria

free shipping

Check price

NT Labs Pond Magiclear, Clears Green and Cloudy Water, Control Against Algae Build up, Improves Pond Water Quality, Pond Water Flocculant (1 Litre)

SUITABLE FOR USE WITH A FILTERLESS POND Without a filter, some clumps may float and can then be removed using a net. Use when you have plenty of time to observe the fish and take action in the unlikely event of a reaction.

free shipping

Check price

Nualgi Pond Care Natural Pond Cleaner, 60ml, Clarifier for Fish Ponds, Safe for All Aquatic Life Including Koi, Pond Water Clarifier Treats Up to 60,000 Gallons

SAFEGUARDS AGAINST DISEASES The improved water quality helps protect fish against diseases and parasites, keeping them healthy and lively. The natural process of diatom growth also helps to maintain optimal pH levels, reducing stress on fish.

free shipping

Check price

AquaSPArkle Spa Sparkle Natural Water Clarifier 1lt

Spa Sparkle is a highly effective spa water polisher that collects small particles together for removal by the filter.

free shipping

Check price

Evolution Aqua 55W UV Bulb Replacement for UVC Pond Water Clarifier

Evolution Aqua Spares

free shipping

Check price

The best pond water clarifiers in comparison

Guaranteed independent and reliable

Features

Features

Features

Features

Features

Features

Features

Features

Features

You might also be interested in these pond water clarifiers.

Our offer