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Bio Start (Enzyme Bio Start-up For Sewage Plants)
Bio Start (Enzyme Bio Start-up For Sewage Plants)
From:  £38.40
  (5)

Rapidly Creates Viable Biomass

Combo Pack : Hydra Crystal + Bio Aquatic Bacteria
Combo Pack : Hydra Crystal + Bio Aquatic Bacteria
From:  £33.50
  (3)

Combo Offer saves the trouble of choosing correct combination of products

SALE
Combo Pack : Hydra Quartz + Bio Aquatic Bacteria
Combo Pack : Hydra Quartz + Bio Aquatic Bacteria
£39.80   £32.84

Combo Offer saves the trouble of choosing correct combination of products

Hydra Algae Free/AD (Wash Tank Additive)
Hydra Algae Free/AD (Wash Tank Additive)
From:  £111.00

Automatic dosing, algae slime sludge eliminator refills for Hydra ADE24/TX system

Hydra Algae Free/HD (Wash Tank  Additive)
Hydra Algae Free/HD (Wash Tank Additive)
From:  £29.70

Manual Dosing Algae Slime Sludge Eliminator for wash and stabiliser tanks

SALE
Hydra Ammonia Lock (Remove Pond Ammonia)
Hydra Ammonia Lock (Remove Pond Ammonia)
£34.05   £25.00
  (4)

Reduces Ammonia levels which are dangerous to fish

Hydra Annihilate BA 5L
Hydra Annihilate BA 5L
From:  £45.00
  (4)

Cleans up heavy soiling, smoke residues, body fluid, blood prevents cross infection

Hydra Annihilate Total
Hydra Annihilate Total
From:  £65.00

Effective against avian flu, foot and mouth, used for general orders against other viruses

Hydra Aqua De-foam (Pond Water Defoamer)
Hydra Aqua De-foam (Pond Water Defoamer)
From:  £18.00
  (6)

Rapidly removes accumulated foam

Hydra Aqua Dechlorinator (Dechlorine Tap Water)
Hydra Aqua Dechlorinator (Dechlorine Tap Water)
From:  £14.00
  (4)

Eliminates toxic to fish chlorine and chloramines from tap water

Hydra Aqua-Brite - Keeps Dyed Water Clean in Fountains and Water Features
Hydra Aqua-Brite - Keeps Dyed Water Clean in Fountains and Water Features
From:  £13.15
  (4)

Complete Water Sterilisation, Shelf life 3 years

Hydra Bio Aquatic Bacteria (Nitrifying Bacteria)
Hydra Bio Aquatic Bacteria (Nitrifying Bacteria)
From:  £22.50
  (4)

Kicks starts natures natural bacteria growth especially in the early months

Hydra Bio Clean (Kitchen Surface Cleaner)
Hydra Bio Clean (Kitchen Surface Cleaner)
£19.80

Non-atomising, biological, powerful foaming hard surface cleaner

Hydra Bio Defence (Flood Damage Clean Up)
Hydra Bio Defence (Flood Damage Clean Up)
£54.00   £50.00
  (4)

Breaks down and removes smelly effluent replaces with pleasant fragrance

Hydra Bio FX (Food Industry Waste Treatment)
Hydra Bio FX (Food Industry Waste Treatment)
From:  £32.00

Powerful blend of enzymes, bacteria to remove and prevent FOG build

HYDRA BIO HC BUSTER: Oil Spill Clean Up
HYDRA BIO HC BUSTER: Oil Spill Clean Up
From:  £28.31
  (4)

Converts harmful petroleum/hydrocarbons to water and carbon dioxide

Hydra Bio Sewage Buster (Sewer Treatment)
Hydra Bio Sewage Buster (Sewer Treatment)
£119.63   £113.17

Bacteria/enzymes continuously breakdown FOG's via biological reaction

Hydra Bio Shock (Balancing Ponds and Lakes)
Hydra Bio Shock (Balancing Ponds and Lakes)
£99.26
  (6)

Complete biological solution for cleaning balancing ponds and lakes

SALE
Hydra Black Liquid Dye
Hydra Black Liquid Dye
From:  £11.95
  (12)

Enhances the natural water reflection with a black mirror finish

Hydra Black Powder Dye
Hydra Black Powder Dye
From:  £63.90

Packed in water soluble pouches for clean, easy application

Hydra Blitz V2 (Foaming Processor Cleaner)
Hydra Blitz V2 (Foaming Processor Cleaner)
From:  £19.48

Foaming processor cleaner, scale remover for heaviest developer and fix build-up

SALE
Hydra Blue Liquid Dye
Hydra Blue Liquid Dye
From:  £11.95
  (15)
Transforms your body of water with a blue finish
Hydra Blue Powder Dye 
Hydra Blue Powder Dye 
£73.47   £63.90

Packed in water soluble pouches for clean, easy application

Hydra Caravan & Motorhome Cleaner
Hydra Caravan & Motorhome Cleaner
From:  £17.50

Use for cleaning all motor home, caravan, cruiser and narrow boat hard surfaces

HYDRA CEBO: Cetane Booster + Lubricants
HYDRA CEBO: Cetane Booster + Lubricants
From:  £17.99
  (6)

Contains the best Cetane Booster (2-Ethyl Hexyl Nitrate) + Lubricants

Hydra Chlor (Chlorine Disinfectant)
Hydra Chlor (Chlorine Disinfectant)
From:  £19.30
  (5)

Chlorine based disinfectant removes all known germs

Hydra Copper Bright
Hydra Copper Bright
From:  £15.00
  (5)

 

  • chromate-free, acidic liquid chemical metal brightener used in and through all types of copper and brass fountains and water features.
SALE
Hydra Crystal (Pond Green Water Treatment)
Hydra Crystal (Pond Green Water Treatment)
From:  £20.00
  (12)
  • Clears green water in fish ponds to give crystal clear water
  • Only to be used in conjunction WITH an External Filter Box with Sponges
  • If your pond does not have a pond filter then use Hydra Pond Clear Plus
  • Shelf life 3 years, 1 kilo treats up to 10,000 litres
Hydra DeGreen - Removes algae, moss, green fungus, from hard & soft surfaces
Hydra DeGreen - Removes algae, moss, green fungus, from hard & soft surfaces
From:  £12.00
  (5)

No need for washing out or scrubbing, does not contain acid or bleach, therefore no damage or discoloration to surfaces

HYDRA DPB-100: Detergents + Lubricants + Cetane Booster
HYDRA DPB-100: Detergents + Lubricants + Cetane Booster
From:  £14.50

Reduces Fuel Consumption, Cleans Injectors, Pumps etc

HYDRA DPF-24: Diesel Particulate Filter Cleaner Additive
HYDRA DPF-24: Diesel Particulate Filter Cleaner Additive
From:  £14.20
  (39)

Burn off accumulated soot deposits

Hydra Dragon Red Liquid Dye
Hydra Dragon Red Liquid Dye
From:  £22.00
  (4)

Transforms your body of water with a blood red finish 

HYDRA EHN-99: Cetane Booster
HYDRA EHN-99: Cetane Booster
From:  £21.50
  (8)

99% Pure 2-EHN 2 Ethylhexyl Nitrate

Hydra Enhance (Improves Fish Health & Colour)
Hydra Enhance (Improves Fish Health & Colour)
From:  £20.63
  (8)
  • Helps your koi and fish look beautiful by adding luster to the white background and deepening colour.

  • Improves general health of the fish, absorbs toxins including heavy metals, pesticides etc.

  • Contains 78 essential natural trace minerals for koi health

  • Shelf life 3 years, 1 kilo treats up to 90,000 litres

Hydra Fountain Clear - Water Fountain Steriliser
Hydra Fountain Clear - Water Fountain Steriliser
From:  £11.00
  (23)

Complete Water Sterilisation, Shelf life 3 years

Hydra Fountain Grime and Lime Foam Cleaner
Hydra Fountain Grime and Lime Foam Cleaner
From:  £15.90
  (5)
  • Spray on foam
  • Fast Acting, penetrating soft clinging foam for Instant Results
  • Removes even the toughest limescale & grime deposits
  • Use in a well ventilated area
  • Safe to use on all types of materials like stones, resin, metals including stainless steel and brass
HYDRA FPB-77: Biocide Treatment for Petrol, Kerosene & Diesel
HYDRA FPB-77: Biocide Treatment for Petrol, Kerosene & Diesel
£13.15
  (24)

Knocks Out Harmful Bugs (Microbes) in All Fuels

SALE
Hydra Frame Clean (Frame Cleaner)
Hydra Frame Clean (Frame Cleaner)
£61.31   £45.00

Solvent degreaser with a very high evaporation rate. Removes pen, pencil and felt tip.

Hydra Grease-Eater Liquid
Hydra Grease-Eater Liquid
From:  £27.00
  (3)
  • Ensures grease traps, pipework and drains are clog free and free flowing.
  • Highly concentrated dual action enzyme, bacteria gives immediate results.
  • Automatic dosing via timer pumps, protects 24/7, no discharge issues.
  • Shelf Life 2 years, 5 litre lasts average restaurant 1 month
Hydra Green Liquid Dye
Hydra Green Liquid Dye
From:  £17.55
  (4)

Transforms your body of water with a green finish

Hydra HS Neutralizer (Septic Tank Smell Remover)
Hydra HS Neutralizer (Septic Tank Smell Remover)
From:  £28.31
  (8)
  • Use to fix the problem of septic tank, bio treatment plant odours
  • Promotes biological action of bacteria that removes smelly hydrogen sulphide
  • As a result BOD levels are reduced and the septic system operates better
  • Shelf life 3 years, 1 kilo treats one septic tank twice
Hydra Lake Clear - Commercial Blanket Weed Remover
Hydra Lake Clear - Commercial Blanket Weed Remover
From:  £188.43
  (6)
  • Biological blanket weed treatment, ideal for large bodies of water
  • Same safe biodegradable action as barley straw but without the mess
  • Rapid action - No waiting weeks for results
  • Shelf life 3 years, 1 kilo treats up to 160m²
Hydra Lake/Quarry Shade Powder Dye
Hydra Lake/Quarry Shade Powder Dye
From:  £52.90
  • Packed in water soluble pouches for clean, easy application
Hydra LT Extreme (Winter Bacteria)
Hydra LT Extreme (Winter Bacteria)
From:  £25.96
  (9)
  • Psychrophile winter bacteria work at temperatures as low as 4°C
  • Unlike other bacteria it continues working during cold winter months
  • Reducing excess nutrients gives your pond or lake a head start in the Spring
  • Shelf life 3 years. For dilutions see below
HYDRA MAXIMUS : Maximise Diesel Power
HYDRA MAXIMUS : Maximise Diesel Power
From:  £14.75
  (31)

Maximum Performance & Fuel Efficiency

SALE
Hydra Midas Equine (Horse Coat Shampoo)
Hydra Midas Equine (Horse Coat Shampoo)
From:  £14.55
  (1)

Multi benefit horse care skin and coat shampoo with herbal conditioners. One product that cleans, conditions and heals. Promotes healthy, glossy coat, and healthy skin tissues. Low lather property allows easy rinsing leaving behind shiny coat, untangled mane and tail.

Hydra PIC-24 Petrol Injector & Carburettor Cleaner + Additives
Hydra PIC-24 Petrol Injector & Carburettor Cleaner + Additives
From:  £10.73
  (26)

Improves Combustion & Boosts Octane

Hydra Pond Water Stabiliser
Hydra Pond Water Stabiliser
From:  £15.31
  (6)
  • Equalises KH / pH Keeps Pond in Balance
  • Safely Adjusts Pond Water Chemistry
  • 1 Kilo Treats 10,000L of Water
  • Harmless for Fish, Pets, Pond Life
Hydra Quartz - Pond Blanket Weed Treatment
Hydra Quartz - Pond Blanket Weed Treatment
From:  £18.50
  (17)
  • Highly effective biological blanket weed treatment
  • Rapid action starts working immediately - No waiting weeks for results
  • Best barley straw alternative, without the usual barley straw mess
  • Shelf life 3 years, 1 kilo treats up to 12,500 litres
Hydra Re-Gen - Regenerate Drain Field
Hydra Re-Gen - Regenerate Drain Field
From:  £39.66
  • Clears drain fields, leach fields & soakaways making them free flowing
  • Regenerates drain fields, leach fields & soakaways, breaks down the pipe clogging heavy black bio slime mat
  • Saves the upheaval, cost of replacing the soakaway distribution pipework
  • Shelf life 3 years, 1 kilo treats small soakaway
Hydra SeaGrow – Organic Seaweed Extract Concentrate
Hydra SeaGrow – Organic Seaweed Extract Concentrate
From:  £14.76
  (3)
Highly concentrated organic liquid seaweed, enhances and encourages rapid growth within plants, lawns, and crops
Hydra Septo Boost - Septic Tank Bacteria
Hydra Septo Boost - Septic Tank Bacteria
£26.40   £24.00
  (13)
  • Powder based bacteria/enzyme in easy to dose water soluble sachets
  • Balanced blend nutrients, enzymes, micro-organisms improve performance
  • Ensures properly functioning septic tanks, treat monthly via toilet
  • Shelf life 2 years, use 1 sachet per month
Hydra Silt-Less All-in-One (For Ponds Only)
Hydra Silt-Less All-in-One (For Ponds Only)
From:  £26.82
  (7)
  • Contains active aerobic bacteria.
  • Natural way to get rid of organic silt, pond sludge
  • Prevents build-up of blanket weed, algae, green water, slime and odour in ponds
  • Safe for fish, wildlife and water plants.
  • Shelf life 3 years, 1 kilo treats 20 sq. metres.
  • Use the product in water with temperature above 12°C.
  • For use in natural ponds without submersible pumps and filters.
Hydra Silt-Less Base (Part-1 of Organic Silt Treatment For Lakes)
Hydra Silt-Less Base (Part-1 of Organic Silt Treatment For Lakes)
£59.13
  (5)
  • Use only in combination with Hydra Silt-Less Bio Bacteria (Part-2) for effective organic silt removal
  • Natural way to get rid of organic silt and sludge build-up up to 9 inches (23cm) over a 12 month period
  • Prevents build-up of slime, green water, algae, blanket weed and odour in lakes
  • Massively increases surface area for bacteria to reproduce on and in
  • Use in Spring & Autumn for Optimum Results
  • Shelf life 3 years, 25 kilo treats up to 100m²
Hydra Silt-Less Bio Bacteria (Part-2 of Organic Silt Treatment For Lakes)
Hydra Silt-Less Bio Bacteria (Part-2 of Organic Silt Treatment For Lakes)
From:  £33.38
  (5)
  • Hydra Silt-Less Bio Bacteria (Part-2) used in conjunction with Hydra Silt-Less Base (Part-1) reduces organic silt and sludge build-up up to 9 inches (23cm) over a 12 month period
  • Effective mix of micro-organisms, trace elements and enzymes to digest organic silt
  • Removing organic silt increases oxygen levels for better fish health
  • Lake sludge digester bacteria acts fast to re-balance the lake ecology
  • Use in Spring & Autumn for Optimum Results
  • Shelf life 3 years, 1 kilo treats up to 400m² (1/10 acre)
Hydra SonicGreen - Liquid Lawn Feed Concentrate
Hydra SonicGreen - Liquid Lawn Feed Concentrate
From:  £15.99
  (2)

Containing Nitrogen, Iron, and organic seaweed, Hydra SonicGreen Liquid Lawn Feed is designed to unlock your lawn's potential with the nutrients it requires to become thicker, greener, and a healthier lawn to be proud of.

Hydra Sprint V2 (Processor Stain Cleaner)
Hydra Sprint V2 (Processor Stain Cleaner)
From:  £17.50
  (1)
  • Fast acting non-fuming foaming processor cleaner.
  • Rapidly removes tar, stains, dyes, glues, developer & polymer residues.
  • Available in 1L foaming bottle for spot cleaning.
  • Available in 5L bottle for soak tank cleaning.
Hydra ST703 - Removes Filamentous Algae
Hydra ST703 - Removes Filamentous Algae
From:  £16.45
  (7)
  • Removes even the toughest of green filamentous algae and blanket weed
  • Absorbs the essential nutrients required for algae growth
  • Active ingredients ward off algae blanket weed long after the treatment
  • Shelf life 3 years, 1 kilo treats up to 20,000 litres
Hydra Trak-It Blue - Spray Pattern Indicator Dye For Use With Herbicides & Fertilisers
Hydra Trak-It Blue - Spray Pattern Indicator Dye For Use With Herbicides & Fertilisers
From:  £10.99
  (6)

Dilution rate 1:1000 (100ml treats 100L)

Hydra Trak-It Green Spray Pattern Indicator Dye For Use With Herbicides & Fertilisers
Hydra Trak-It Green Spray Pattern Indicator Dye For Use With Herbicides & Fertilisers
£10.99
  (4)

Dilution rate 1:1000 (100ml treats 100L)

Hydra Turquoise Blue Liquid Dye
Hydra Turquoise Blue Liquid Dye
From:  £17.55
  (5)

Transforms your body of water with a Turquoise finish

HYDRA VULCAN - Heating Oil Additive
HYDRA VULCAN - Heating Oil Additive
From:  £15.65
  (26)

Contains heavy duty detergents, cleans burner nozzles and injectors

Hydra WonderGrow - Liquid Plant Food
Hydra WonderGrow - Liquid Plant Food
From:  £14.96
  (1)
Concentrated liquid plant food, enhances and encourages growth within plants and crops
Hydra Zeta Gold (Anti-Bacterial Liquid Soap)
Hydra Zeta Gold (Anti-Bacterial Liquid Soap)
From:  £11.81
  (3)

Powerful and effective against Orf and many other harmful bacteria, viruses, fungi and micro-organisms.

Septo Air Biological Media 1 kg
Septo Air Biological Media 1 kg
£21.21
  • Biological media and bacteria for Hydra Septo-Air conversion units
  • Combination organic media for bacteria to colonise, 12 different bacteria strains
  • Natural media can go to treatment plant renew when system is pumped
  • Shelf life 2 years, 1 kilo treats small system
  
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Page 1 of 1:    66 Items
Featured Reviews
Rating:  
The best blanket weed remover
26 March 2023  |  John

Removing blanket weed.
I have been trying to kill blanketweed for years and have tried everything now I have discovered Hydra I don't have a problem.
Fantastic product.


Rating:  
Finally
23 March 2023  |  Mike

Struggle with dpf and eml since October. Talk with my mechanic he tried to force regeneration did it after two weeks light shows up again. Audi garage told me that it will cost me 2k so is March and found that product decided to give it a go. I put two bootles in to 40l of diesel. Today is a third day done maybe 150km since and what!?!?!?! The light on the dash gone 👏👏. So I have ordered another two. It does what it says.


Rating:  
Great for water feature
13 March 2023  |  Amanda

Does the job


Rating:  
It's work as add on like premium quality fuel
12 January 2023  |  Zafri

It’s work as it’s described, more mileage , every 10 ml save me about £10


Rating:  
Overcomes murky water
07 December 2022  |  Christine

Use it in my water feature to keep the water clean. Just need a drop or two every month but remember don’t use with plants or fish.


Rating:  
Great job for keeping fountain clean!
26 November 2022  |  Ben

My water feature was starting to get algae build up and a bit grubby but as soon as I started using this I never have to change the water - it makes it so crystal clear and reduces the build up! Highly recommend - just keep away from pets!


Rating:  
My Daisy is blossoming
06 June 2021  |  Jessica

I have had Daisy flowers in my garden for years now, and this year I have decided to give a go to fertilizer. I have been a Hydra customer for a while now, and I know they have quality products and great service, and when I saw that they have a new fertilizer product for sale I decided to give it a shot. SO GLAD I DID - my garden looks so beautiful this year - and I have been using it for only a week! Cannot recommend it enough!


Rating:  
Was skeptic, but its brilliant!
24 May 2021  |  John

Hello guys
What can I say, over the years I have used products that claim to kill off blanket weed, so when I used your product it was used with some scepticism, well, that was short lived, it done exactly what it said on the tin (or should I say bucket), it made the pond look messy for about 24 hrs, after that, it was obvious that it was doing its job, brilliant, and only too happy to recommend, the fast delivery was appreciated.
Regards
John Burden


Rating:  
Excellent
08 December 2020  |  Jo

Both the Isuzu and the Webasto on my boat are running much smoother, latter was sounding terminal', there was a big blue smoke first time I turned engine on, and that presumably was injectors cleaning.
Technical advice excellent (phone)
Sales and delivery excellent
Packaging excellent
Website good design
Videos suited to American hype market, but there is a big range of products, and I overcame my cynicism to buy. Product was recommended on a canal forum.
Note .... There were three products that suited my purpose which is why I phoned technical, it seems Diesel Boost will clean Webasto and engine, and stabilise diesel stored in tanks and in containers.
I have enough for a year, will purchase again
Tx


Rating:  
Definitely worth it
07 November 2020  |  Anamaria

Let me be clear here, I am a natural sceptic. This product sounded nice, but I wasn't bought right away.
I am driving 10 years old Volkswagen Golf, MK6. Also, I am a young driver, and I didn't think I was going to notice any difference.
Boy, was I wrong. I added the first dose ever, I notice a difference within the first 10 minutes of driving. My engine was smoother, and when going really slow in second gear, instead of my engine struggling and sounding like it was going to stall, it was pushing me forward.
Also, next morning, instead of the usual first 5 mins being very loud when turned on, it was again, smooth and silent, like it was turned on for some time.
This product is amazing, I am definitely using this in the future. Price is affordable and worth every penny. I would give 10 stars if I could.