FREE Delivery on UK Orders over £50 / ROI Orders over €60

API Aquarium

Explore our comprehensive range of API Aquarium Products, designed to keep your aquatic environment healthy and thriving. Our selection includes essential supplies such as liquid test kits, antifungal remedies, and water conditioners. Trust API for high-quality products that ensure the best care for your aquarium. Shop our range today and maintain a beautiful, balanced aquatic ecosystem with API.

Enjoy free UK delivery on orders over £50 and Ireland delivery on orders over €60


10 products

  • Last stock! Pimafix Antifungal Remedy  120ml

    Api Pimafix Antifungal Remedy 120ml

    2 in stock

    PimaFix Treats fungal infections and both internal and external bacterial infections. Will not adversely affect the biological filter, alter the pH, or discolor water. Safe for reef aquariums and live plants. For use in fresh or salt water. PimaFix has been formulated to work in combination with Melafix to enhance effectiveness against fish diseases.

    2 in stock

    £11.50

  • Last stock! Liquid Master Test Kit (FW) 6 Tests

    Api Liquid Master Test Kit (FW) 6 Tests

    2 in stock

    Measures the most important aquarium levels quickly and accurately. Benefits: - Tests pH, High Range pH, Ammonia, Nitrite & Nitrate - Scientifically accurate for professional results Follow API Easy Care Guide and use the FRESHWATER MASTER TEST KIT: During Regular Care - When addressing Water Problem Solving issues 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. The FRESHWATER MASTER TEST KIT is highly accurate and economical, and includes a computer calibrated, laminated color card, 4 test tubes and holding tray. The FRESHWATER MASTER TEST KIT comes with a complete, step-by-step instruction booklet, including information on how to correct unsafe water conditions.

    2 in stock

    £47.95

  • Last stock! Api Melafix Aquarium 118ml

    API Api Melafix Aquarium 118ml

    2 in stock

    MelaFix Heals open wounds & abrasions, treats fin and tail rot, eye cloud, mouth fungus and promotes regrowth of damaged fin rays & tissue. Will not adversely affect the biological filter, alter the pH, or discolor water. Safe for reef aquariums and live plants. For use in fresh or salt water.

    2 in stock

    £10.25

  • Last stock! Accu Clear A for Aquariums 37ml

    Api Accu Clear A for Aquariums 37ml

    2 in stock

    Quickly clarifies cloudy water Benefits: - Clears cloudy water, eliminating haze - Fast acting Follow API Easy Care Guide and use ACCU-CLEAR when: - Addressing Water Problem Solving issues 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. ACCU-CLEAR eliminates the milky haze caused by gravel in new aquariums. If your water is cloudy, the use of ACCU-CLEAR will help to clear it and clear it fast! Treats 1,401L

    2 in stock

    £5.35

  • Last stock! PH Liquid Test Kit (FW) 250 Tests

    Api PH Liquid Test Kit (FW) 250 Tests

    1 in stock

    Monitors pH to maintain healthy freshwater conditions Benefits: - Fast, easy and accurate - Reads pH 6.0-7.6 Follow API Easy Care Guide and use the pH TEST KIT: During Regular Care When addressing Water Problem Solving issues 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. Fish require a specific pH level to thrive. However, pH in an aquarium can fluctuate due to fish waste, addition of tap water and the build-up of natural acids. Use this kit to easily and accurately measure the pH level and maintain a healthy freshwater community aquarium. For use in freshwater aquariums.

    1 in stock

    £9.95

  • Last stock! Nitrite Liquid Test Kit (FW/SW) 180 Tests

    Api Nitrite Liquid Test Kit (FW/SW) 180 Tests

    1 in stock

    Nitrite Liquid Test Kit Toxic nitrite is produced by nitrifying bacteria in the biological filter as it breaks down ammonia. This kit tests for harmful nitrite and measures levels from 0 to 5.0 ppm.

    1 in stock

    £15.80

  • Last stock! Deluxe PH Liquid Test Kit (FW) 250 Tests

    Api Deluxe PH Liquid Test Kit (FW) 250 Tests

    1 in stock

    3 Bottle kit, includes pH up and pH down. Monitor and adjust pH to maintain healthy freshwater conditions.

    1 in stock

    £14.95

  • Last stock! API  Ammonia Test Kit

    Api API Ammonia Test Kit

    1 in stock

    Ammonia Liquid Test Kit Ammonia, constantly released into the aquarium, is the number one killer of tropical fish. Fast, easy and accurate, this test kit measures ammonia levels from 0 to 7 ppm.

    1 in stock

    £13.70

  • Last stock! API - 5-in-1 Aquarium Test Strips 4pk

    Api API - 5-in-1 Aquarium Test Strips 4pk

    3 in stock

    In order for fish to thrive, water conditions in the aquarium needs to be the same or very similar to those found in nature. This kit easily and accurately measures 5 of the most important aquarium water parameters.

    3 in stock

    £6.95

  • Last stock! A.P.I. FRESH/SALTWATER NITRATETEST KIT *SINGLES*

    Api A.P.I. FRESH/SALTWATER NITRATETEST KIT *SINGLES*

    1 in stock

    Nitrate Liquid Test Kit Measures nitrate levels in both fresh & saltwater aquariums. Tests nitrate levels from 0 to 160 ppm. 90 tests per kit.

    1 in stock

    £14.85

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