10 Best Pond Clear Water Treatment For Small Ponds in The UK

Last updated on 29/06/2025

Advertising disclosure

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

5% Off

Why We Love It

Boosts pond health naturally.
Reduces maintenance effort.
Award-winning UK product.

Main Highlights

✔ 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.
✔ Digests sludge and cleans up organic waste - PURE Sludge Bomb contains an optimal mix of all natural anaerobic enzymes and bacteria that work as an effective pond cleaner treatment and sludge buster for garden ponds.
✔ 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.
✔ 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.
✔ Award winning product manufactured in the UK – Part of the Evolution Aqua award winning range of bacterial products for ponds, freshwater and marine aquariums.

Blagdon Clear Pond Water Treatment, 1 Litre, Clears Dirty Green or Brown Cloudy Water Quickly, Natural, Wildlife Safe, Harmless to Fish and Filter Bacteria, 1L, Treats 20,000 Litres of Water

21% Off

Why We Love It

Clears dirty pond water quickly.
Enhances pond's mechanical filtration.
Naturally safe for all species.

Main Highlights

CLEARS DIRTY POND WATER - Clear Pond rapidly clears green, cloudy, dirty or milky water by clumping together suspended particles causing them to sink to the bottom of the pond or to become trapped in the filter
FAST ACTING - you should expect to see great results within just a few hours
NATURALLY SAFE - Clear Pond is harmless to filters and all species of pond fish, plants and water using wildlife
ENHANCES FILTRATION - Clear Pond enhances mechanical filtration in your pond to help keep your water crystal clear
ACCURATE DOSING CHAMBER - the accurate dosing chamber makes for easy, no mess measurement of treatment to suit the size of pond – shake bottle well for best results

Hydra Fountain Clear Water Feature Cleaner | 250ml Treats 7,500L Highest Dilution Rates - Water Feature Treatment Keeps Water Crystal Clear from Algae, Cleans Water & Biofilm Build-up

Free Shipping

Why We Love It

Crystal clear water year-round.
Safe on all materials.
Effective against harmful bacteria.

Main Highlights

Crystal Clear Water: The Hydra Fountain Clear is a water fountain clarifier that can be used all year in both indoor and outdoor water systems. The water treatment saves hours of manual cleaning and rapidly removes algae. It is an algaecide that minimises slime build-up in fountains and water features.
Safe to USE: The fountain clear water treatment is safe to use on all types of materials like stones, resin, and metals including stainless steel and brass. It is a safe water cleaner that ensures a shelf life of 3 years without causing any foam.
Sterilise Easily: Water feature care uses the best fountain clear treatment complete water sterilisation, and prevents harmful bacteria. It is an algae remover that is also effective against Legionella (Legionnaires' Disease).
Shock Dose System: The algaecide for water features and fountains gives total protection against algae and green water in all water recirculation systems. All you need to do is a shock dose system that will clear the water in a couple of days. Shock Dose Rate 1:10,000. Maintenance Dose Rate 1:30,000.
Precautions: Do not use it in a water system with any aquatic life in it. Used with dilution, this product is non-toxic, safe for animals, and birds equally effective in hard water. If treated water splashes on surrounding plants & flowers, it should not harm them. In case of any queries feel free to contact us.

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

Free Shipping

Why We Love It

Removes haze and cloudiness.
Safe for fish and plants.
Visible results in under 24 hours.

Main Highlights

AquaDesign POND CLEAR removes haze, cloudiness and green water
Non-toxic formula is safe for fish and plants
Fast acting - visible results in under 24 hours
Easy to dose Liquid
Available in 1000ml, 2500ml and 5000ml sizes
Comes with 3ml pipette for dosing

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

Free Shipping

Why We Love It

Powerful multipurpose pond treatment.
Natural beneficial bacteria usage.
Safe for aquatic life.

Main Highlights

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.
Natural Beneficial Bacteria Treatment – Containing billions of natural beneficial bacteria, Pond Klear Xtra is 3 x stronger than our original Pond Klear. This makes it one of the strongest treatments on the market.
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.

Envii Pond Klear - Natural Green Pond Water Treatment, Clears Green and Murky Water for Crystal Clear Healthy Water, Safe for all Fish and Wildlife -1L Treats 40,000 Litres

Free Shipping

Why We Love It

Clears green, murky pond water.
Contains beneficial, safe bacteria.
Improves water clarity efficiently.

Main Highlights

Clears Green & Murky Pond Water - Pond Klear clears green and murky water by targetting microscopic particles and nutrients in ponds, clumping them at the bottom of the pond. This will be removed by a pump and filter or digested by the bacteria.
Contains Millions of Benefical Bacteria - Pond Klear contains no harsh chemicals and is completely natural making it safe for all fish including koi & sturgeon, wildlife & plants
Improved Water Clarity - Used weekly, Pond Klear will help improve the clarity of the pond water along with benefiting fishes health by removing phosphates and replenishing good bacteria
Easy to Use Bottle - With an accurate dosing chamber, applications are really easy to ensure you're using enough per treatment to suit the size of your pond
Treats Large Areas of Water - Pond Klear 1L bottle will treat up to 40,000 litres of water. All instructions are on the back of the bottle

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

18% OffFree Shipping

Why We Love It

Binds suspended particles efficiently.
Works within a few hours.
Easy to use and effective.

Main Highlights

ERROR:#N/A
Binds suspended particles
works within a few hours

Evolution Aqua Pure Pond Bomb – for Crystal Clear Healthy Water, Treats up to 20,000 litres

7% OffFree Shipping

Why We Love It

Natural, fast-acting pond solution.
Safe for all ponds.
Award-winning UK product.

Main Highlights

✔ NATURAL, CHEMICAL FREE SOLUTION FOR CRYSTAL CLEAR, HEALTHY POND WATER – Pure Pond Bomb contains beneficial bacteria and natural enzymes that rapidly break down organic waste leaving your pond clean and fish healthy.
✔ FAST ACTING, INTENSIVE TREATMENT FOR YOUR POND – For use in water quality emergencies or when making any changes to your pond system, such as adding new fish or changing diet.
✔ SAFE FOR FISH AND ALL PONDS – Pure Pond Bomb’s all natural ingredients only activate when needed. Safe to use in new or established, filtered or non-filtered, self-contained water features and ponds.
✔ PLANT AND POND LIFE FRIENDLY – Pure Pond Bomb does not contain any algaecides which can be harmful to fish, plant and pond life. It is not intended to clear green water. Use Pure Pond Bomb together with an appropriate UV Clarification to safely eradicate green water.
✔ AWARD WINNING PRODUCT, MANUFACTURED IN THE UK – Voted product of the year by Practical Fishkeeping and AQUA.

envii Sludge Klear Pond Sludge Remover, Natural Bacteria Sludge Buster Digests & Controls Organic Waste, Safe for All Fish & Wildlife, 6 Tablets treats 30,000 litres

Free Shipping

Why We Love It

Enhances pond health and clarity.
Safeguards fish, wildlife, and plants.
Assures large treatment capability.

Main Highlights

Digests Sludge & Removes Organic Waste – Sludge Klear contains billions of beneficial bacteria and enzymes to help digest sludge, remove organic waste & phosphates in garden ponds.
Reduces Pond Maintenance – By digesting and limiting the sludge in your pond, this will prevent all smells and ensure your fish are healthy. Our sludge treatment will also help prevent green water & blanket weed with continued use.
Harmless to All Filters – Sludge Klear is safe to use in all ponds with filters & will work in conjunction with filter bacteria to help keep ponds clear of sludge. Our Sludge buster is also safe to use in a wildlife pond
Safe for all Fish, Wildlife & Plants – Containing only natural ingredients, Sludge Klear is safe for all fish, wildlife & plants. Safe to use in all ponds with or without filters.
Large Treatments – Each packet will treat 30,000 litres. 1 tablet is enough for 5,000 litres of water.

Evolution Aqua Pure Pond – Beneficial Bacteria for Ponds | Pond Bacteria Treatment & Healthy Water Maintenance for clear pond | Aids biological filtration and Fish Safe Pond Equaliser | 500ml

4% OffFree Shipping

Why We Love It

Promotes healthy aquatic environments.
Efficiently reduces harmful components.
Simplifies water purification process.

Main Highlights

[EASY DOSAGE] – Similarly to Evolution Aqua Pure Pond Bomb simply add Pure Pond directly into your pond filter for optimal results, it can also go in the Pond but for the best results place in filter. Works with pond sludge treatment, pond algae treatment, sludge bomb or a pond green water treatment, Pure Pond balls provide a long-lasting and eco-friendly solution compatible with our full range of products.
[MAINTENANCE] – Achieve consistent crystal-clear water and a healthy aquatic environment by eliminating ammonia and nitrite, ensuring balanced water parameters for your precious fish and pond wildlife.
[BIODEGRADABLE DESIGN] - Pure Pond features biodegradable polymer balls that gradually release live pond bacteria as needed, providing a safe and natural pond water treatment solution for maintaining water quality without harming fish or aquatic life.
[LASTING BACTERIA BOOST] - Each litre of Pure Pond contains over 8 billion live bacteria, breaking down waste and supporting long-term pond health. Unlike Pond Bomb being for emergencies, this is a maintenance product so should be dosed monthly to provide your pond with consistently safe parameters
[IMPROVES FISH HEALTH] - By reducing harmful ammonia and nitrite levels, Pure Pond promotes a cleaner, healthier pond environment ensuring safe water parameters for your fish and reducing the risk of disease and nasty infections. It’s perfect supporting the ecosystem and the rest of the wildlife and animals surrounding your pond.

8.7

Excellent

Save 4%

We scanned 428 products

We reviewed these offers relevant to the Pond Clear Water Treatment For Small Ponds within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Evolution Aqua, Blagdon, HYDRA, AquaDesign, envii, Tetra, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Pond Clear Water Treatment For Small Ponds in the market, we considered we took a deep dive into 2141 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is 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. We love many things about this product by Evolution Aqua. What sets it apart from the competition is Boosts pond health naturally. , Reduces maintenance effort. , Award-winning UK product.
The best value product for most shoppers and where user satisfaction is continuously the highest is Blagdon Clear Pond Water Treatment, 1 Litre, Clears Dirty Green or Brown Cloudy Water Quickly, Natural, Wildlife Safe, Harmless to Fish and Filter Bacteria, 1L, Treats 20,000 Litres of Water by Blagdon based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Pond Clear Water Treatment For Small Ponds and the best cost-to-value ratio is Blagdon Clear Pond Water Treatment, 1 Litre, Clears Dirty Green or Brown Cloudy Water Quickly, Natural, Wildlife Safe, Harmless to Fish and Filter Bacteria, 1L, Treats 20,000 Litres of Waterat Blagdon with a 21% discount.
Our list of the best Pond Clear Water Treatment For Small Ponds is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Pond Clear Water Treatment For Small Ponds in The UK

Related Deals You Might Like for Pond Clear Water Treatment For Small Ponds

Blagdon Green Away Pond Water Treatment, Clears Green Water and Suspended Algae Particles, Natural, Plant Friendly, Safe for Fish, 250 ml, Treats 5,000 Litres of Water,package may vary

Blagdon Clean Pond Pods, Clears Blanket Weed, Reduces Filter Cleaning, Feeds Aquatic Plants, Eats Pond Sludge, Removes Chlorine, Makes Tap Water Safe, Pet & Wildlife Safe (pack of 6 pods)

Blagdon Pond Sludge Buster, Digests Harmful Organic Waste, Introduces Good Bacteria, Keeps Pond Clean, 4 x 9g Sachets, Each Sachet Treats 2,273 Litres

Blagdon Feature Clear, Fast Acting, Effective Treatment, Cleans Cloudy Water and Smelly Bio-Fouling, Removes Sludge & Algae, 250ml, Treats 625 Litres

Blagdon Pond Bioactive Sludge Control, 250ml, Adds Good Bacteria, Keeps Wildlife Ponds Clean and Healthy, Removes Organic Waste, 250ml, Treats 2,273L of Pond Water

Evolution Aqua PURE Wildlife - Natural Pond Cleaner, Wildlife Pond Treatment for Crystal Clear, Healthy Water | Wildlife Safe, Easy-To-Use and Effective Solution | 8 Balls

API POND ACCU-CLEAR Pond Water Clarifier Bottle, White, 473 ml

Easylife Eco Garden Pond Clear Water Treatment (2 Sachets) Removes Algae, Duckweed and Scum, Clears 4000L of Water, Safe for Pets, Fish and Pond Plants - Fully Guaranteed

envii Water Feature Klear, Natural Water Feature Cleaner, Chemical Free Treatment Safe for all Wildlife & Pets – 20 Tablets Treats 2,000 Litres of Water

Blagdon Pond Fresh Start, Removes Chlorine, Makes Tap Water Safe for Pond Fish, 500ml, Treats 4546 Litres of Water, Transparent

We scanned 428 products

We concluded that: