Pond Water Treatments and Additives

Treatments for your pond, if you have a problem with algae or water quality then these treatments are perfect. From green water treatments to tap safe treatments. If you deal with problems early, you will avoid issues in the future.

Please select from the Pond Water Treatments below to buy at our best prices:

Sort by: Display: 70 Items
Fresh Start Pond Treatment by Blagdon

Fresh Start Pond Treatment by Blagdon

Fresh Start Pond Treatment for Ponds will condition tap water, making it suitable for your fish. We have 3 sizes available, 250ml, 500ml and 1 litre, please choose the relevant size your require from below. Great for use when filling up a pond with tap water, topping up due to evaporation loss or carrying out a water change. Fresh Start removes harmful chlorine and heavy metals and also adds a protective coating of aloe vera to your fish protecting against potential problems. Harmless to all filters and species of pond fish, plants and water using wildlife.

From £7.99
Blagdon Green Away Pond Treatment

Blagdon Green Away Pond Treatment

Blagdon Green Away will clear green water problems in your pond. Available in 3 sizes: 250ml, 500ml and 1 litre. Use this treatment when you pond water has become green like 'pea soup'. This is caused by a bloom of unicellular algae. Removing green water by clumping algae together which causes it to sink or become trapped by your filter. We strongly recommend using a sludge treatment to remove sunken algae from your pond preventing water quality problems.

From £7.99
Blagdon Clear Pond Water Treatment

Blagdon Clear Pond Water Treatment

Blagdon Clear Pond Treatment will clear dirty cloudy water and aids filtration too. Available in 3 sizes: 250ml, 500ml and 1 Litre. Use this product when your pond water is dirty or cloudy and brown or grey in colour. It works by clumping suspended particles together and causing them to sink out of suspension or become trapped in your filter. We strongly recommend you use a sludge treatment when using this product to prevent water pollution.

From £7.99
Blagdon Duckweed Buster Pond Treatment

Blagdon Duckweed Buster Pond Treatment

Blagdon Duckweed Buster will help to control the spread of unsightly Duckweed in your pond. Use this product when duckweed has covered the surface of your pond cutting out light to plants. A natural bacterial product which prevents the growth of Duckweed (Lemna Minor) by modifying the water chemistry and creating water conditions which prevent the spread of this problematic aquatic plant. Available in 3 sizes: 250ml, 500ml and 1 Litre.

From £11.99
Blagdon Anti Foam Pond Treatment 1 Litre NEW

Blagdon Anti Foam Pond Treatment 1 Litre

Treats 9,092 litres / 2,000 gallons. Blagdon Anti Foam removes unsightly foam from your pond. Foam usually appears around fountains, waterfalls and venturi's and this is because the excess protein is agitated and causes foam. This treatment rapidly clears foam caused by these excess organics. We strongly recommend that you use a sludge buster treatment in combination with this treatment.

RRP £19.99
£17.99
Evolution Aqua Pure Pond Bomb For 20,000 Litres

Evolution Aqua Pure Pond Bomb For 20,000 Litres

Pure Pond Bomb (for Ponds up to 20,000L). This will leave your pond crystal clear. Drop the pond bomb straight into your filter or into the pond itself, you can even use this when starting off a new filter. Effective for up to 20,000 Litres / 4444 Gallons. You cannot overdose on this product, so you do not have to worry about putting too many in the pond. A fast acting concentrated of Pure Pond, ideal for use in Koi Ponds, ornamental ponds, self contained water features or even a pond without filtration. A unique combination of friendly bacteria and enzymes which will start working as soon as they hit the water cleaning up organic waste and breaking down ammonia and nitrites.

£14.95
Blagdon formally Interpet  Pond Sludge Buster Sachet 500 gallon

Blagdon formally Interpet Pond Sludge Buster Sachet 500 gallon

Rapidly creates a healthy cleanpond for fish. Use whetehr you have a filter or not! use once a fortnight for low waste levels. Consumes dead algae after using algae control products. Treats up to 2,273 Litres (500 Galls). Features: 1 sachets - A sachet will treat up to 500 galls. Place product directly into pond or filter. Each sachet contains 8,500 million bacteria to consume the fish waste. Harmless to filters and all species of pond fish, pond plants and water using wildlife.

£4.49
Blagdon formerly Interpet  Pond Sludge Buster Carton 2000 gallon

Blagdon formerly Interpet Pond Sludge Buster Carton 2000 gallon

Rapidly creates a healthy cleanpond for fish. Use whether you have a filter or not! use once a fortnight for low waste levels. Consumes dead algae after using algae control products. Treats up to 9000 Litres (2000 Galls). Features 1 sachets - A sachet will treat up to 500 galls. Place product directly into pond or filter. Each sachet contains 8,500 million bacteria to consume the fish waste.Harmless to filters and all species of pond fish, pond plants and water using wildlife.

RRP £13.99
£11.99
Banish Algae Pad Treats 5000 Litres

Banish Algae Pad Treats 5000 Litres

A complete pad will treat 5,000 Litres / 1100 Gallons. A superbly effective blankweed and suspended algae treatment pad. The whole pad is impregnated with a powerful agent which will rid your pond of unsightly algae. If your pond is smaller like 2,500 Litres for exmple, you can simply cut it in half. Larger ponds may require multiple pads to treat them. You can float the pad on the surface of your pond or place a rock on top to weigh it down. Alternatively, it can be placed inside the filter if you would like. Due to the nature of the treatment it is important not to overdose as this can effect fish and plants. Underdosing can cause the pad to be ineffective.

WAS £7.99
NOW £5.99
Cloverleaf Blanket Weed Answer 200g - Blanket Weed Treatment

Cloverleaf Blanket Weed Answer 200g - Blanket Weed Treatment

Treats 2,500 Litres / 555 Gallons “Blanket Answer” is a unique blend of minerals and enzymes to combat blanket weed – the nightmare curse of many a pondkeeper. The special formula works in all temperatures, and seeks to succeed where many commercial bacteria cultures will fail. It is 100% safe for all pond fish, plants, and biological filtration systems. UV units or protein skimmers need not be switched off. Unlike some products on the market Blanket Answer is not dependent upon water temperature, and is not held back/restricted by high ph levels.

RRP £9.99
£7.99
Cloverleaf Blanket Weed Answer 800g - Blanket Weed Treatment SAVE
£6.00

Cloverleaf Blanket Weed Answer 800g - Blanket Weed Treatment

“Blanket Answer” is a unique blend of minerals and enzymes to combat blanket weed – the nightmare curse of many a pondkeeper. The special formula works in all temperatures, and seeks to succeed where many commercial bacteria cultures will fail. It is 100% safe for all pond fish, plants, and biological filtration systems. UV units or protein skimmers need not be switched off. Unlike some products on the market Blanket Answer is not dependent upon water temperature, and is not held back/restricted by high ph levels. Will treat up to 10,000 litres (2222 gals)

RRP £22.99
£16.99
Cloverleaf Blanket Weed Answer 2kg - Blanket Weed Treatment SAVE
£14.00

Cloverleaf Blanket Weed Answer 2kg - Blanket Weed Treatment

Treats up to 25,000 Litres / 5,500 Gallons. “Blanket Answer” is a unique blend of minerals and enzymes to combat blanket weed – the nightmare curse of many a pondkeeper. The special formula works in all temperatures, and seeks to succeed where many commercial bacteria cultures will fail. It is 100% safe for all pond fish, plants, and biological filtration systems. UV units or protein skimmers need not be switched off. Unlike some products on the market Blanket Answer is not dependent upon water temperature, and is not held back/restricted by high ph levels.

RRP £45.99
£31.99
Cloverleaf Blanket Weed Answer 4kg - Blanket Weed Treatment Free UK
Delivery*
SAVE
£21.16

Cloverleaf Blanket Weed Answer 4kg - Blanket Weed Treatment

Treats up to 50,000 Litres / 11,00 Gallons. “Blanket Answer” is a unique blend of minerals and enzymes to combat blanket weed – the nightmare curse of many a pondkeeper. The special formula works in all temperatures, and seeks to succeed where many commercial bacteria cultures will fail. It is 100% safe for all pond fish, plants, and biological filtration systems. UV units or protein skimmers need not be switched off. Unlike some products on the market Blanket Answer is not dependent upon water temperature, and is not held back/restricted by high ph levels.

RRP £78.15
£56.99
TetraPond AlgoRem NEW

TetraPond AlgoRem

Effective treatment for clearing green water. Harmless to fish, plants and other wildlife.

From £7.99
Clear Waters Blanketweed Treatment for 10,000 Litres

Clear Waters Blanketweed Treatment for 10,000 Litres

Clear Waters is an effective treatment for blanket weed in ponds. Due to powerful active ingredients in Clear Waters, decomposing blanket weed will need to be removed. After a few days any remaining blanketweed should be removed with a fine net.

RRP £18.99
£16.99
Bermuda Blanket Ban - Blanket Weed Treatment  (3 x Tubs) NEW

Bermuda Blanket Ban - Blanket Weed Treatment (3 x Tubs)

Blanketban is a unique powerful blend of microbes especially formulated to keep ponds free from blanketweed. It will also keep the water clear of algea causing green water. Blanketban only contains harmless naturally occurring microbes on a water soluble carrier to provide a simple and clean solution to blanketweed and green water problems.

£38.99
WaterLife Bacterlife NEW

WaterLife Bacterlife

BACTERLIFE contains selected natural bacteria necessary for establishing and maintaining biological systems responsible for maintaining healthy aquarium and pond water. This biological action breaks down organic wastes i.e. fish faeces and uneaten food, in addition to ammonia and nitrite.

TetraPond ClariFin NEW

TetraPond ClariFin

Concentrated powder for keeping pond water crystal clear, and for clearing existing murky water.

£8.99
Oase Safe & Care 500ml

Oase Safe & Care 500ml

AquaActiv Safe&Care 500 ml Makes tap water suitable for fish and biotope Immediately binds chlorine and toxic heavy metals Bio-protection colloids protect the mucous membrane from injury and infection Ideal after use of medication More than 60 years experience in the keeping and medication-based treatment of ornamental fish Container size 500 ml/Suitable for ponds up to max. 10 m³

£19.99
Bermuda Blanket Ban - Blanket Weed Treatment NEW

Bermuda Blanket Ban - Blanket Weed Treatment

Blanketban is a unique powerful blend of microbes especially formulated to keep ponds free from blanketweed. It will also keep the water clear of algea causing green water. Blanketban only contains harmless naturally occurring microbes on a water soluble carrier to provide a simple and clean solution to blanketweed and green water problems.

£17.99
Bermuda Barley Straw Pellets NEW

Bermuda Barley Straw Pellets

Barley straw pellets are the natural way to control algae growth and maintain a clearer pond. Simply introduce barley straw pellets into your pond using the net provided and let nature take its course. Bermuda natural barley straw comes complete and ready to use.

From £10.49
Viresco Aqua NEW

Viresco Aqua

Viresco Aqua is a Micro Organism Based Product for Suppressing Blanketweed and Algae Bloom in Ponds. Viresco Aqua is harmless for Fish and Plants. Viresco Aqua is Non Chemical and totally Biological. Viresco Aqua digests organic wastes / sludge build up. Viresco Aqua clarifies water and has a long shelf life and is harmless to Wildlife and improves Fish Health. Removes Nitrate and reduces Phosphate.

From £13.49
Intercel Phos-Kit treats 27000 litres NEW

Intercel Phos-Kit treats 27000 litres

With lily tech Phos-kit adaption formula contains active ingrediants including LILY-TEC that have been developed for use in home garden fish ponds that are susceptible to infestation by fibrous Blanketweed which can be devastating to the free flow of mechanical pond pumps,detrimental to underwater plant life and often restricting the free movement of the fish by entanglement. Phos-kit Adaptogen formula reduces Blanketweed problems by utilising the botanical science of pond plants and thier natural requirements against the nutritional requirements of Blanketweed. Phos-kit adaptogen formula has no detrimental effect on fish and pond life and stimulates the growth of lilies and other pond plants.Regular use of Phos-kit will generate conditions in your pond that blanketweed positively hates.

£24.99
Intercel Blanc-Kit - Excel - Blanket Weed Treatment NEW

Intercel Blanc-Kit - Excel - Blanket Weed Treatment

Safe and effective treatment for the majority of fish diseases, thus removing the uncertainty surrounding accurate disease diagnosis.

From £7.49
WaterLife Alginzin P 125ml - Blanket Weed Treatment NEW

WaterLife Alginzin P 125ml - Blanket Weed Treatment

Blanket weed is the bain of most pond keepers life. It is unsightly and can smother pond plants. Algizin P is a highly acclaimed algicide which kills blanket weed FAST.

£8.99
Oase Biokick Fresh 500ml Filter Starter

Oase Biokick Fresh 500ml Filter Starter

In order to get the filtration process working at full capacity more quickly, Oase offer you a natural kick-start in the form of Biokick

£24.99
Oase Aqua Activ - Aquahumin Pond Peat NEW

Oase Aqua Activ - Aquahumin Pond Peat

Special peat for garden ponds. Free from chemical additives, nematodes, pathogens and substances toxic to plants.

£22.99
Viresco Koi NEW

Viresco Koi

From £13.49
Oase Biokick CWS 200ml Filter Starter NEW

Oase Biokick CWS 200ml Filter Starter

RRP £21.49
£19.99
Oase Biokick 1 Filter Starter x 6 tubs Free UK
Delivery*
SAVE
£24.95

Oase Biokick 1 Filter Starter x 6 tubs

RRP £89.94
£64.99
Interpet Pond Guardian Tonic Salt NEW

Interpet Pond Guardian Tonic Salt

This unique balanced formulation of essential physiological salts promotes fish health, all year round. It improves water quality with its built in pH buffer which guards against potentially damaging swings in pH. Pond guardian helps fish to maintain a stable internal salt and fluid balance, which is essential for fish health. It will help minimize stress in fish and act as a supportive treatment when treating disease. Pond Guardian also reduces the toxicity of Nitrite a toxic fish waste which can build up in the pond. 2.27kg Treats 2,250 litres (500 Gallon) 9.08kg Treats 9,092 litres (2000 Galls).

From £8.99
Bermuda Mega Barley Bale

Bermuda Mega Barley Bale

A small bale of barley straw,each bale treats 13500 litres (3000 galls) total, can be divided up into smaller portions, comes complete with net bag for easy handling. Lasts up to 6 months. Environmentally friendly method of controlling blanket weed and green water in pools.

RRP £14.99
£12.99
Bermuda Barley Straw NEW

Bermuda Barley Straw

Bermuda Barley Straw For Sale. A small bale of barley straw, each bale treats 4500 litres (1000 galls) total, can be divided up into smaller portions, comes complete with net bag for easy handling. Lasts up to 6 months. Environmentally friendly method of controlling blanket weed and green water in pools.

RRP £6.99
£5.99
Cloverleaf Sludge Answer - Pond Sludge Treatment NEW

Cloverleaf Sludge Answer - Pond Sludge Treatment

Cloverleaf Sludge Answer Sludge Answer is a unique blend of beneficial bacteria to convert and remove sludge from the pond and filter system. The accumulation of sludge within a pond or filter system means far more than an unhealthy sight, when such deposits will not only erode important saturated oxygen levels but also become a detrimental breeding ground for nasty pathogenic bacteria. Using natures natural range of bacteria Cloverleaf’s "Sludge Answer" is the safe answer to biologically removing sludge and dead algae’s thus creating a cleaner pond and less filter maintenance, whilst promoting a sounder pond environment for the fish to enjoy. "Sludge Answer" is designed for frequent use throughout the year on established ponds, however it is also a first class product when used on a new immature pond, and will greatly assist in obtaining filter maturity. For existing ponds with bad sludge problems it is recommended that in the early stages of applying "Sludge Answer" it should be ideally supported with Cloverleaf’s "Oxygen Answer" - especially if the pond does not have a mechanical air pump of substance. For new or problematic ponds "Sludge Answer" should be added at the rate of 200cc per 1000 litres of pond water, with follow up doses (every 28 days or as required) at the rate of 100cc per 1000 litres. The product should be mixed with 3 litres of pond water, and applied over the pond surface and to the filter system using a watering can. (Note: Mark a watering can for "Pond Use" only). UV clarifiers should be turned off for the first 24 hours of application. 1 litre bottle will treat ponds up to 5,000 litres (30ml treats 150 litres).

RRP £22.99
£19.99
Bermuda Bumper Barley Bale

Bermuda Bumper Barley Bale

A medium bale of barley straw,each bale treats 9000 litres (2000 galls) total. It can be divided up into smaller portions, comes complete with net bag for easy handling. Lasts up to 6 months. Environmentally friendly method of controlling blanket weed and green water in pools.

RRP £9.99
£8.99
Oase String Algae Control NEW

Oase String Algae Control

This new formula string algae control from Oase contains natural micro-organisms which remove string algae (blanket weed) from your pond to leave it clear and healthy for you fish.

£19.99
Pond Care - FILTER KIT

Pond Care - FILTER KIT

Helps to mature new bio-filters with beneficial bacteria, helping to reduce ammonia and nitrite levels in a new pond. When to use: When installing a new pond or filter When carry out a partial water change In early spring as a filter booster When experiencing high ammonia or nitrite levels, especially in a relatively new pond.

WAS £7.99
NOW £5.99
Intercel Phos-Kit NEW

Intercel Phos-Kit

With lily tech Phos-kit adaption formula contains active ingrediants including LILY-TEC that have been developed for use in home garden fish ponds that are susceptible to infestation by fibrous Blanketweed which can be devastating to the free flow of mechanical pond pumps,detrimental to underwater plant life and often restricting the free movement of the fish by entanglement. Phos-kit Adaptogen formula reduces Blanketweed problems by utilising the botanical science of pond plants and thier natural requirements against the nutritional requirements of Blanketweed. Phos-kit adaptogen formula has no detrimental effect on fish and pond life and stimulates the growth of lilies and other pond plants.Regular use of Phos-kit will generate conditions in your pond that blanketweed positively hates.

£8.39
Cloverleaf Bacteria Answer - Blend of Nitrifying Bacteria

Cloverleaf Bacteria Answer - Blend of Nitrifying Bacteria

Bacteria Answer is a unique blend of nitrifying bacteria to promote healthy filtration systems. Nitrifying bacteria are vital for the establishment of a healthy balanced pond, and are a key contributor towards the development of a mature filtration system. Achieving such parameters in a new fish pond is fraught with potential problems, but Cloverleaf’s "Bacteria Answer" is the safe answer to accelerating the process. For new ponds, new filter systems, or sudden high fish loads, dosage with "Bacteria Answer" should be made twice a month for the first month, and once per month thereafter. For long term maintenance Cloverleaf’s "Pond Support Answer" is recommended. Dosage of "Bacteria Answer" should be based on 200ml per 1000 litres of pond content, with the product mixed in 3 litres of pond water and applied with a watering can to the pond and filter system. UV clarifiers should be turned off for the first 24 hours of application. 1 litre bottle will treat ponds up to 5,000 litres (30ml treats 150 litres).

WAS £17.99
NOW £14.99
Blagdon formally Interpet  Pond Ammonia Remover 250ml NEW

Blagdon formally Interpet Pond Ammonia Remover 250ml

Removes toxic Ammonia & Chloramine from ponds. Treats 2,273lts (500 gals). Use when: Ammonia test kits indicate the presence of toxic ammonia. Fish are sick or dying which is often caused by ammonia poisoning. Biological filters are new (less than 6 weeks old).

RRP £7.99
£6.99
TetraPond AlgoFin - Blanket Weed Treatment NEW

TetraPond AlgoFin - Blanket Weed Treatment

Effective control for blanketweed and other filamentous algae. Harmless to fish, plants, and other wildlife.

From £7.99
NishiKoi - Goodbye Green Water NEW

NishiKoi - Goodbye Green Water

Nishikoi Goodbye Green Water is a water soluble sachet dosing system, containing an 8 week treatment programme for ponds up to 1000 gallons. Simply drop a sachet in to your pond every week and say goodbye to green water with no risk of overdosing. Made from a unique blend of bacteria, enzymes and activated barley straw (100% natural).

RRP £16.20
£12.99
Blagdon formally Interpet  Pond Bio-Start Carton 2000 gallon NEW

Blagdon formally Interpet Pond Bio-Start Carton 2000 gallon

Removes toxic Ammonia & Chloramine from ponds.Treats 2,273lts (500 gals). Use when: Ammonia test kits indicate the presence of toxic ammonia. Fish are sick or dying which is often caused by ammonia poisoning. Biological filters are new (less than 6 weeks old). Contains 4 sachets - each sachet will treat up to 500 galls. Place product directly into pond or filter. Each sachet contains 8,500 million bacteria to consume the fish waste. Harmless to filters and all species of pond fish, pond plants and water using wildlife.

£9.99
Blagdon Pond Balance NEW

Blagdon Pond Balance

Blagdon Pond Balance has a unique non-algicide Plant Friendly formula. It is used to combat predominately the problem of blanketweed that affects most ponds. (particularly those which are UV filtered) This rapid growing filamentous stringy algae can spoil the appearance of the pond and also clog pumps and filtration equipment. Pond Balance works by making a nutrient unavailable that is only required by filamentous algae and thus literally starves it out of existence. It does this whilst ensuring that no harm comes to any other pond plants, fish, filtration bacteria or water using wildlife. Also containing plant stimulants, it helps establish a naturally balanced pond.

From £8.99
Bermuda Banish Toxins Pond Salt

Bermuda Banish Toxins Pond Salt

Bermuda Banish Toxins Pond Salt will help to protect your fish from fungal infections, especially during the colder months when they are more suceptible due to their immune system being less active. It will maitain their own protective mucous coat, which will help to prevent parasites or other problems. This will also reduce fish stress too. Helping to improve biological performance of your filtration too. Contains Vitamin B1.

From £7.99
Evolution Aqua Stop Blanketweed! 1KG

Evolution Aqua Stop Blanketweed! 1KG

Stop Blanketweed! 1000g. STOP Blanketweed is to be used only in the treatment of filamentous algae, commonly known as blanket weed in ornamental and garden ponds. Blanket weed is one of the most hated problems of pond keeping and a nuisance to everyone as it makes your pond unsightly, blocks filters, pumps and pipes. STOP Blanketweed is a unique product which will kill & prevent the regrowth of blanket weed if used as instructed. STOP Blanketweed is easy and simple. Contains no harmful chemicals. Safe for all pond inhabitants.

£19.95
Evolution Aqua Stop Blanketweed! 2.5KG

Evolution Aqua Stop Blanketweed! 2.5KG

Stop Blanketweed! 2500g. STOP Blanketweed is to be used only in the treatment of filamentous algae, commonly known as blanket weed in ornamental and garden ponds. Blanket weed is one of the most hated problems of pond keeping and a nuisance to everyone as it makes your pond unsightly, blocks filters, pumps and pipes. STOP Blanketweed is a unique product which will kill & prevent the regrowth of blanket weed if used as instructed. STOP Blanketweed is easy and simple. Contains no harmful chemicals. Safe for all pond inhabitants.

£39.95
Bermuda Barley Bale Bulk Pack (15000 gallon) Free UK
Delivery*
SAVE
£20.00

Bermuda Barley Bale Bulk Pack (15000 gallon)

Bulk quantity of Barley Straw to treat a total of 67500 litres (15000 gallons) ideal for lake management. 5 Bales in the pack with each bale treating 13500 litres (3000 galls), can be divided up into smaller portions, comes complete with net bag for easy handling. Lasts up to 6 months. Environmentally friendly method of controlling blanket weed and green water in pools.

RRP £74.95
£54.95
Blagdon PH Adjuster for Acid Ponds

Blagdon PH Adjuster for Acid Ponds

Blagdon pH Adjuster for Acid Ponds. Many fish diseases are caused because fish are under stress, one main cause for this stress is an unsuitable pH. If your pond is suffering from a high acid level, this pack is the ideal solution. Treating up to 5,675 litres (1,250 gallons) per pack.

RRP £9.99
£7.99
Blagdon formally Interpet  Pond Bio-Start Sachet 500 gallon

Blagdon formally Interpet Pond Bio-Start Sachet 500 gallon

Rapidly creates a safe pond for fish. Bio Start contains biological cultures which within hours begin to set up the essential cycles that ensure pond water is safe for fish.Treats up to 2,273 Litres (500 Galls) and cuts time taken to mature ponds in half. Features: 1 sacets - A sachet will treat up to 500 galls. Place product directly into pond or filter. Each sachet contains 8,500 million bacteria to consume the fish waste. Harmless to filters and all species of pond fish, pond plants and water using wildlife.

£3.85
Oase String Algae Control 500ml Treatment

Oase String Algae Control 500ml Treatment

Oase String Algae Control is a very effective way of controlling blanketweed. It effectively controls string algae, blue-green algae and slime algae that grows in the majority of garden ponds and water features. How much should i use? 1 Bottle (500ml) treats 10,000 litres (2200 gallons). Add 50ml per 1000 litres (220 gallons). Treatment 2 should be added after 4-6 weeks if required. Product Information New generation combination product. Actively effective against string algae (blanket weed). Optimal supplement: Oxygen Stabiliser. Take care when using algaecide – always read the label and product information before use. Do not use in wildlife ponds or in ornamental ponds when frogs/toads are spawning. Please Note Dead algae is broken down biologically, the balance in the pond is stabilised. It is very important to ensure adequate oxygen supply through water circulation!

£19.99
Oase Aqua Activ PhosLess SAVE
£12.04

Oase Aqua Activ PhosLess

For ponds up to 40,000 Litres or 10,000 Litre Fish Ponds. Easy to install. Natural product to reduce algae growth by binding excess phosphates. Binds heavy metals (such as copper and lead) and sulphide which is toxic to fish. The Phosless inserts are placed in the Biotec 18/36 filters or directly into moving water (watercourse). The bound phosphate can be disposed of as a fertiliser additive, or can be disposed of in the residual waste container. You should replace the filter inserts after 6-8 weeks.

RRP £49.99
£37.95
Oase Optipond 500ml Treatment

Oase Optipond 500ml Treatment

Optipond AquaActiv 500ml treates 5,000l. For use after changing your water or after heavy rainfall.

£19.99
Oase OxyPlus 500ml

Oase OxyPlus 500ml

AquaActiv OxyPlus 500 ml Increases the oxygen content in the pond Prevents formation of hazardous fermentation gas Supports the biological selfcleaning properties of the water Ideal for lack of oxygen e.g. if there is heavy algal bloom Oxygen immediate aid with lasting effect Product is marked »irritant«! Container size 500 ml/Suitable for ponds up to max. 10 m³ Container size 5 l/Suitable for ponds up to max. 100 m³

£19.99
Evolution Aqua Pure Pond 2L Slow Release Bacteria Gell Balls

Evolution Aqua Pure Pond 2L Slow Release Bacteria Gell Balls

Pure Pond 2L (For Ponds up to 40,000L) water treatment for Sale. Pure Pond are biodegradable balls, crammed full of live bacteria that are slowly released when they are needed most. With over 8,000,000,000 bacteria per litre of Pure Pond Balls, your pond will shine even more than normal, especially if you add them monthly into the Kaldnes Moving bed, or into any other type of filter you may have.

£24.95
GreenWays Original Barley Straw

GreenWays Original Barley Straw

For an average sized garden pond. Each pack contains 3 pads to give 12 months protection to a pond of up to 700 gallons (3 cu metres). In cases of heavy infestation twice or even three times that dose should be used. Pad size: 7 inches (180 mm) square x 1/2 inch (13 mm) thick. Launched in 1994 these pads first introduced barley straw treatment to garden ponds and tens of thousands of packs are in regular use.

RRP £9.99
£6.99
No More Blanketweed by TAP Treats 2500 Gallons

No More Blanketweed by TAP Treats 2500 Gallons

Treats 2,500 Gallons / 11,250 Litres of pond water. An infusion of natural minerals and additives which when added to your pond will successfully combat blanketweed. We recommend using a sludge removal treatment after using this product. To use this product we advise that you take water from your pond using a bucket and mix in the powder. Try to pour it around the edge where blanketweed is growing from. Initially the water will go cloudly, this will clear after 3-5 days and blanketweed will begin to disappear from your pond over approximately 2 weeks. If the blanketweed returns then we advise to repeat the dosage.

£14.99
WaterLife Algizin G NEW

WaterLife Algizin G

Algizin G builds on the heritage and reputation of the other Algizin products, which are so well known and respected in the market. Algizin G resolves green water problems, which prove a major challenge for pond keepers throughout the Spring, Summer & Autumn. Algizin G works by flocculating the green water (clumping it together) and causing it to drop out of suspension. After Algizin G has achieved this, the algae is removed by pump or filtration. Use Waterlife's Bacterlife to assist the filter in breaking the algae down.

From £6.99
Tap Algae Pad NEW

Tap Algae Pad

A unique four way action pond pad which can be used to clear pond Algae in all situations. Algae Pads works four times better than Barley Straw and clears most ponds in four days.

RRP £11.99
£9.99
Blagdon Blanket Weed Buster

Blagdon Blanket Weed Buster

If you have blanket weed or green water problems in your pond then Blanket Weed Buster will help to remove it for you. 100% Natural, using no chemicals with a built in sludge buster to remove any debris from the bottom of your pond after treatment too. Plant friendly, this will not harm any of your pond plants or aquatic life. Treats 2,723 litres / 500 gallons for 4 weeks. What's in the box? 1 x 25g Sachet of Blanket Weed Buster. 1 x Instruction Leaflet. 1 x Dosage Spoon.

RRP £12.99
£9.99
TetraPond Watersafe / Aquasafe NEW

TetraPond Watersafe / Aquasafe

Protects fish from the harmful effects of mains water. Neutralises chlorine and heavy metals, making mains water safe to use in the pond.

From £7.99
Blagdon PH Adjuster for Alkaline Ponds

Blagdon PH Adjuster for Alkaline Ponds

Blagdon pH Adjuster for Alkaline Ponds. Many fish diseases are caused because fish are under stress, one main cause for this stress is an unsuitable pH. If you pond is suffering from a high alkaline level, this pack is the ideal solution. Treating up to 5,675 litres (1,250 gallons) per pack.

£7.99
Velda Algae Blocks and Dispenser NEW

Velda Algae Blocks and Dispenser

Algae Block contain a number of very active substances, which fight growth of algae and take care that the pond will remain free from algae in a certain period of time. Provided that they are correctly dosed, Algae Block are safe for plants and fish, whereas the micro fauna will be hardly attacked.

£17.99
Evolution Aqua Stop Blanketweed! 500g

Evolution Aqua Stop Blanketweed! 500g

Stop Blanketweed! 500g pond water treatment for Sale. STOP Blanketweed is to be used only in the treatment of filamentous algae, commonly known as blanket weed in ornamental and garden ponds. Blanket weed is one of the most hated problems of pond keeping and a nuisance to everyone as it makes your pond unsightly, blocks filters, pumps and pipes. STOP Blanketweed is a unique product which will kill & prevent the regrowth of blanket weed if used as instructed. STOP Blanketweed is easy and simple. Contains no harmful chemicals. Safe for all pond inhabitants.

£11.95
Blagdon Pond Ammonia Remover 500ml NEW

Blagdon Pond Ammonia Remover 500ml

Treats 4,500lts (1,000 gallons). Use when: Ammonia test kits indicate the presence of toxic ammonia. Harmless to filters and all species of pond fish, pond plants and water using wildlife.

RRP £17.49
£13.99
NishiKoi - Goodbye Blanket Weed - Blanket Weed Treatment

NishiKoi - Goodbye Blanket Weed - Blanket Weed Treatment

Goodbye Blanket Weed from Nishikoi is an award winning natural solution to blanket weed. All you have to do is drop 1 water soluble sachet into the pond or filter every week. Containing friendly, harmless bacteria and enzymes which eat the food that blanket weed live on, it also contains activated barley straw.

From £14.99
Oase PondClear 500ml

Oase PondClear 500ml

AquaActiv PondClear 500 ml Binds mineral substances that cause turbidity Binds organic substances from fish waste or leaves that cause turbidity Effective against fine, non-filterable pollutants such as phosphates and heavy metal combinations Includes GH quick test Not suitable for algae control Container size 500 ml/Suitable for ponds up to max. 10 m³ Container size 5 l/Suitable for ponds up to max. 100 m³

£19.99
Blagdon Extract of Barley Straw Pond Treatment 1 Litre SAVE
£10.50

Blagdon Extract of Barley Straw Pond Treatment 1 Litre

Blagdon's Extract of Barley Straw will treat your pond, helping to naturally remove blanket weed which can be unsightly. Treating up to 18,184 litres / 4,000 gallons of pond water for up to six weeks. As this treatment is natural there are no worries like with other chemicals.

RRP £45.49
£34.99
Blagdon Flora Boost 250ml Pond Treatment

Blagdon Flora Boost 250ml Pond Treatment

Blagdon's Flora Boost will supply your pond with essential food nutrients for pond plants to flourish and grow. For ponds up to 2,273 litres / 500 gallons.

RRP £10.99
£9.49
Sort by: Display: 70 Items