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Water Treatments & Test Kits

Displaying  45  of  45  Products
API 5 in 1 Test Strips
£4.99
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In order for fish to thrive, water conditions in the aquarium need to be the same or very similar to those found in nature.
API Accu-Clear 118ml
£8.99
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ACCU-CLEAR clarifies hazy aquarium water fast, eliminating clouding brought about by suspended particles.  The fast acting, ACCU-CLEAR clumps tiny floating particles together, forming large particles to be removed by the aquarium filter
API Ammo-Lock 118ml
£7.99
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If the aquarium tests positive for ammonia, act quickly by doing a partial water change and then neutralize the ammonia.
API Ammonia Test Strips
£11.99
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The quick and accurate way to test for the presence of ammonia. This kit reads 0-6 ppm of ammonia. Desiccant-lined tube, with snap-tight cap, provides maximum moisture protection for accurate results
API Aquarium Salt-Large 936g
£7.99
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RRP: £9.00
API Aquarium Salt is a product that promotes fish health, improves gill function and adds essential electrolytes. This product is for freshwater fish and is all natural. Freshwater fish actively maintain a natural balance of electrolytes in their body fluids. Electrolytes are essential for the uptake of oxygen and the release of carbon dioxide and ammonia through the gills. A lack of electrolytes may cause serious health problems. API Aquarium Salt, made from evaporated sea water, provides these essential electrolytes.
API Aquarium Salt-Small 454g
£4.99
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API Aquarium Salt is a product that promotes fish health, improves gill function and adds essential electrolytes. This product is for freshwater fish and is all natural. Freshwater fish actively maintain a natural balance of electrolytes in their body fluids. Electrolytes are essential for the uptake of oxygen and the release of carbon dioxide and ammonia through the gills. A lack of electrolytes may cause serious health problems. API Aquarium Salt, made from evaporated sea water, provides these essential electrolytes.
API Aquarium Start Up Pack
£6.99
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It’s important to treat your water before adding fish.  This convenient kit contains Stress Coat and Quick Start to get your new aquarium started in 2 easy steps.
API Goldfish Protect
£3.99
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Makes tap water safe for Goldfish. Use when starting up and changing water. Removes chlorine and chloramines.
API High Range pH Test Kit
£7.19
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Use to measure pH changes in marine aquariums, aquariums with African cichlids, and very alkaline tap water. Reads the pH of water within the high range of 7.4 to 8.8. 160 tests per kit.
API Liquid Ammonia Test Kit
£11.99
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Quickly & accurately measures the level of ammonia in pond water, reading levels from 0 ppm to 8 ppm. Makes 130 tests.
API Liquid KH Test Kit
£5.99
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Tests tap water fresh or saltwater aquariums for carbonate hardness (KH). Can be used to determine the proper dose of pH buffers.
API Liquid Nitrite Test Kit
£11.99
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Quickly accurately measures the level of nitrite in pond water, reading levels from 0 ppm to 5 ppm. Makes 180 tests.
API Master Reef Test Kit
£26.24
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RRP: £34.99
The REEF MASTER TEST KIT tests 4 key parameters to keep reef inhabitants healthy. The kit is highly accurate and economical
API Melafix
£9.99
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API Melafix is a treatment for bacterial infections that repairs damaged fins, ulcers and open wounds. It also promotes tissue and fin regrowth and made from natural active ingredient.
API Monthly Care
£5.99
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MONTHLY CARE contains 4 different aquarium treatments, each provided in single dose formats.   To maintain a healthy aquarium, it’s important to change the water and treat it monthly.
API Nitrate Test Kit
£11.99
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A high nitrate level indicates a build-up of fish waste and organic compounds, resulting in poor water quality and algae growth.
API pH Test and Adjuster Kit
£10.99
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A complete kit to measure and adjust pH. Tests pH levels from 6.0 to 7.6 and includes bottles of pH Up and pH Down to modify aquarium water pH to desired levels.
API pH Test Kit
£7.99
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Taking a few minutes each week to maintain and monitor aquarium conditions is the key to a healthy aquarium.   pH control is imperative to prevent the harmful effects of overly alkaline or acidic aquarium water on fish and plant life.
API pH UP and pH DOWN 118ml
£9.99
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API pH UP and pH DOWN are two different products. The pH UP increases pH in an aquarium whereas pH DOWN lowers the pH in an aquarium. Both of these products are for freshwater use and are both safe for fish and plants.
API Phosphate Test Kit
£11.99
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Phosphate can enter your aquarium through tap water, fish waste, and decaying organics such as uneaten food and dead algae.
API Pimafix
£14.99
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API Pimafix treats fungal infections. It rapidly treats fungal infections on body & fins. Pimafix is a safe way to treat a broad range of fungal fish infections. Treats fungus or cottony growth, mouth and body fungus and reddening of fins and body. Also treats internal and external bacterial infections.
API Prevent Algae
£6.99
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Reduces aquarium maintenance by removing phosphate which contributes to algae growth. Regular use prevents green water. Safe for all aquarium inhabitants including corals and inverts in marine/saltwater setups.
API Proper pH 6.5
£5.49
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API Proper pH 6.5 is a product that sets and stabilises pH to 6.5 in an aquarium which is ideal for tetras, discus and angelfish. This also removes chlorine, neutralises chloramines and detoxifies heavy metals in freshwater aquariums. This is perfectn for soft water species such as tetras, discus, rasboras and angelfish.
API Proper pH 7.0
£5.49
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API Proper pH 7.0 is a product that sets and stabilises pH to 7.0 which is ideal for freshwater community aquariums. Removes chlorine. Sets and holds pH to 7.0 and resists pH rebound. Also neutralises chloramines and detoxifies heavy metals. Perfect for use in aquariums containing a mixed variety of tropical freshwater fish.
API Proper pH 7.5
£5.49
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API Proper pH 7.5 is a prduct that sets and stabilises pH to 7.5 which is ideal for goldfish, guppies, barbs & mollies. This product also removes chlorine. Resists pH rebound. Neutralises chloramines, adds electrolytes and detoxifies heavy metals in freshwater aquariums. Perfect for use with goldfish and in aquariums containing other previously named types of fish as well as live bearers including guppies, mollies, barbs, swordtails and platies.
API Proper pH 8.2 Small
£5.49
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Automatically sets and stabilizes pH at 8.2. For saltwater, brackish and African cichlid aquariums. Use when setting up aquarium or changing water. No phosphates.
API Stress Coat Tap Water Conditioner
£2.99
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API Stress Coat Tap Water Conditioner is a product that makes tap water safe for fish by removing chlorine and chloramines in the water. It also detoxifies heavy metals. API's Stress Coat also helps to protect fish with the healing power of aloe vera in. It is also proven to reduce stress in fish and also replaces the slime coat.
API Stress Zyme
£3.49
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STRESS ZYME adds beneficial bacteria to break down and consume organic matter to help keep the aquarium clean.  The bacteria in STRESS ZYME is uniquely suited to consume aquarium sludge, and keep the gravel clean.
API Stress Zyme and Cleaner
£3.99
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API Stress Zyme Aquarium Cleaner is a product that helps to keep your aquarium clean. It contains live bacteria that consumes sludge and reduces aquarium maintenance. It is also all natural and adds beneficial bacteria for a healthy aquarium.
Evolution Aqua Pure Aquarium
£9.99
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Evolution Aqua Pure Aquarium maintains crystal clear and healthy water inside your aquarium. Pure Aquarium reduces the amount of filter cleaning and maintenance and is a bacterial treatment for all freshwater tropical aquariums. Awarded Practical Fishkeeping (Reader's Poll) - Tropical Product Of The Year 2014
Freshwater Master Test Kit
£39.99
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Taking a few minutes each week to maintain and monitor aquarium conditions is the key to a healthy aquarium.  The FRESHWATER MASTER TEST KIT tests the parameters that affect the health of freshwater fish: pH, High Range pH, Ammonia, Nitrite and Nitrate.
Goldfish Care Pack
£4.99
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Combines the water conditioning of Goldfish Protect and the cleaning power of Goldfish Aquarium Cleaner in a trial size pack.
King British 6 in 1 Test Strips
£14.99
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King British 6 in 1 Test Strips are quick and easy to use dip tests. Tests include ammonia, nitrate, nitrite, carbonate hardness, ph and general hardness. For use in coldwater and tropical aquariums as well as ponds
King British pH Minus 100ml
£5.99
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King British PH Minus is a product that lowers the pH of water safely to a suitable level. A pH level is the measure of acidity or alkalinity of a solution. A low pH indicates that a solution is acidic, whilst a high pH indicates that a solution is alkaline.
King British pH Plus 100ml
£5.99
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King British pH Plus increases the pH of water by the addition of non-alkaline buffers in coldwater, tropical & marine aquariums. Ideal for use with Lake Malawi & Lake Tanganyikan Cichlids. ​​​​​​​A low pH indicates that a solution is acidic, whilst a high pH indicates that a solution is alkaline.
pH Up 118ml
£8.99
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Raises pH and makes aquariums more alkaline. Fast-acting, colourless and easy-to-use
Phos. Remover (Marine) 375g
£14.99
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Prevents Algae Growth Phosphate Remover permanently removes phosphate to help prevent unwanted algae growth in marine aquariums.
Prevent Algae Size 5 82ml
£5.99
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RRP: £7.99
Prevent Algae is a filter material which removes the common nutrients phosphate and silicate from the water. For freshwater or marine aquariums.
Quick Start
£4.99
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Start your aquarium immediately.  QUICK START allows for instant addition of fish as it immediately starts the natural aquarium cycle. 
Stress Coat
£2.49
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STRESS COAT makes tap water safe and contains the healing power of Aloe Vera, scientifically proven to reduce fish stress and heal damaged tissue. 
Supercarb (Marine) 250g
£10.99
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Supercarb removes organic molecules and colour taint, enhancing water clarity in marine aquariums. Can be used to remove residues of treatments from water.
Tap Water Conditioner
£1.99
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Spread throughout tap water are various chemicals and toxins that can be harmful to fish if left untreated. TAP WATER CONDITIONER removes these toxins instantly.
Tetra Crystal Water
£6.99
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For crystal clear aquarium water - Safely clears cloudy aquarium water
Tetra Easy Balance
£9.99
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EasyBalance® offers a number of benefits, including reduction of phosphate, stabilization of pH and KH, and replenishment of essential trace elements and minerals.
Tropical Fish Care Pack
£5.99
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API's best selling water conditioners in a convenient kit. Contains Stress Coat and Stress Zyme. Dose with Stress Coat to remove chlorine and neutralize chloramines and protect fish with the healing power of Aloe Vera.