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Alkalinity/KH Aquarium Water Test Kits

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    • Type: Test Kit- Selected
    • Test/Treatment Parameter: Alkalinity/KH- Selected
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    • AQUAVERITY 7 IN 1 POND TEST STRIPS QUICK & EASY TO USE IN GARDEN PONDS 50 STRIPS - Image 1 of 4
    • AQUAVERITY 7 IN 1 POND TEST STRIPS QUICK & EASY TO USE IN GARDEN PONDS 50 STRIPS - Image 2 of 4
    • AQUAVERITY 7 IN 1 POND TEST STRIPS QUICK & EASY TO USE IN GARDEN PONDS 50 STRIPS - Image 3 of 4
    • AQUAVERITY 7 IN 1 POND TEST STRIPS QUICK & EASY TO USE IN GARDEN PONDS 50 STRIPS - Image 4 of 4

    AQUAVERITY 7 IN 1 POND TEST STRIPS QUICK & EASY TO USE IN GARDEN PONDS 50 STRIPS

    Brand new
    £9.95
    Free postage
    Click & Collect
    156 sold
    2⁣⁣8⁣ ⁣⁣⁣5⁣⁣⁣⁣⁣⁣T⁣⁣ ⁣N⁣⁣G⁣ ⁣W⁣T⁣ ⁣⁣⁣⁣⁣1⁣D⁣
    • NT Labs Marine Lab Multi Test Kit Master Reef NH3 NO2 NO3 pH Aquarium Fish Tank - Image 1 of 3
    • NT Labs Marine Lab Multi Test Kit Master Reef NH3 NO2 NO3 pH Aquarium Fish Tank - Image 2 of 3
    • NT Labs Marine Lab Multi Test Kit Master Reef NH3 NO2 NO3 pH Aquarium Fish Tank - Image 3 of 3

    NT Labs Marine Lab Multi Test Kit Master Reef NH3 NO2 NO3 pH Aquarium Fish Tank

    Brand new
    £27.45
    Free postage
    Click & Collect
    13 sold
    I⁣D⁣ ⁣S⁣p⁣o⁣n⁣s⁣o⁣W⁣r⁣е⁣d⁣Q⁣⁣⁣ ⁣L⁣⁣K⁣ ⁣5⁣⁣⁣⁣S⁣ ⁣4⁣
    • NT LABS POND LAB 200 MULTI TEST KIT MASTER PONDLAB WATER SET PH GH KH NO2 NO4 - Image 1 of 4
    • NT LABS POND LAB 200 MULTI TEST KIT MASTER PONDLAB WATER SET PH GH KH NO2 NO4 - Image 2 of 4
    • NT LABS POND LAB 200 MULTI TEST KIT MASTER PONDLAB WATER SET PH GH KH NO2 NO4 - Image 3 of 4
    • NT LABS POND LAB 200 MULTI TEST KIT MASTER PONDLAB WATER SET PH GH KH NO2 NO4 - Image 4 of 4

    NT LABS POND LAB 200 MULTI TEST KIT MASTER PONDLAB WATER SET PH GH KH NO2 NO4

    Brand new · NT Labs
    (116)
    £25.99
    Free postage
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    2,807 sold
    T⁣S⁣K⁣p⁣o⁣ ⁣n⁣D⁣P⁣ ⁣L⁣ѕ⁣Q⁣ ⁣9⁣o⁣H⁣r⁣e⁣d⁣⁣ ⁣⁣⁣⁣⁣J⁣K⁣
    • NT LABS AQUARIUM LAB MULTI-TEST MASTER KIT WATER TESTING TROPICAL FISH TANK - Image 1 of 4
    • NT LABS AQUARIUM LAB MULTI-TEST MASTER KIT WATER TESTING TROPICAL FISH TANK - Image 2 of 4
    • NT LABS AQUARIUM LAB MULTI-TEST MASTER KIT WATER TESTING TROPICAL FISH TANK - Image 3 of 4
    • NT LABS AQUARIUM LAB MULTI-TEST MASTER KIT WATER TESTING TROPICAL FISH TANK - Image 4 of 4

    NT LABS AQUARIUM LAB MULTI-TEST MASTER KIT WATER TESTING TROPICAL FISH TANK

    Brand new
    (232)
    £25.99
    Free postage
    Click & Collect
    7,304 sold
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  • SALIFERT PROFI TEST KIT RANGE MARINE REEF SALTWATER CORAL AQUARIUM FISH TANK - Image 1 of 1

    SALIFERT PROFI TEST KIT RANGE MARINE REEF SALTWATER CORAL AQUARIUM FISH TANK

    Brand new · Salifert
    (31)
    £10.50 to £34.95
    Free postage
    Click & Collect
    112 sold
    2⁣⁣⁣⁣⁣⁣⁣⁣M⁣ ⁣0⁣0⁣ ⁣N⁣Q⁣ ⁣⁣U⁣X⁣⁣ ⁣⁣⁣3⁣⁣H⁣ ⁣C⁣
  • API 5 in 1 AQUARIUM WATER TEST KIT DIP 25 STRIPS FRESHWATER SALTWATER FISH TANK - Image 1 of 1

    API 5 in 1 AQUARIUM WATER TEST KIT DIP 25 STRIPS FRESHWATER SALTWATER FISH TANK

    Brand new · API
    (46)
    £5.99 to £12.99
    Free postage
    Click & Collect
    369 sold
    C⁣⁣⁣⁣T⁣ ⁣⁣4⁣⁣⁣Q⁣⁣⁣ ⁣V⁣F⁣⁣⁣ ⁣⁣⁣⁣⁣⁣F⁣⁣⁣D⁣
  • Hanna HI-97105 Marine Master Multiparameter Photometer - Image 1 of 3

    Hanna HI-97105 Marine Master Multiparameter Photometer

    Brand new
    £250.00
    or Best Offer
    Free postage
    ⁣⁣H⁣⁣U⁣⁣ ⁣L⁣I⁣ ⁣3⁣⁣⁣⁣2⁣⁣ ⁣D⁣Z⁣ ⁣⁣⁣N⁣⁣⁣C⁣ ⁣⁣
  • API GH & KH Test Kit Freshwater Aquarium Test Kit 1-Count For Fresh Water - Image 1 of 4

    API GH & KH Test Kit Freshwater Aquarium Test Kit 1-Count For Fresh Water

    Fast & Free Delivery On All Items | Multibuy Savings
    Brand new · API
    (8)
    £11.49
    (£11.49/Unit)
    Free postage
    Click & Collect
    475 sold
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  • API Test Kits Ammonia Nitrate Nitrite pH KH GH Phosphate Freshwater Marine - Image 1 of 1

    API Test Kits Ammonia Nitrate Nitrite pH KH GH Phosphate Freshwater Marine

    Brand new · API
    (56)
    £8.49 to £19.99
    Free postage
    Click & Collect
    220 sold
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  • Envii Pond Test Strips - Quick & Easy Test Kit Contains 25 Test Strips - Image 1 of 4

    Envii Pond Test Strips - Quick & Easy Test Kit Contains 25 Test Strips

    Brand new
    (10)
    £11.95
    Free postage
    Click & Collect
    728 sold
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  • Water Testing Strips Kit Nitrate Nitrite Total Hardness Total Alkalinity pH x 5 - Image 1 of 2

    Water Testing Strips Kit Nitrate Nitrite Total Hardness Total Alkalinity pH x 5

    Brand new
    (6)
    £3.99
    Free postage
    826 sold
    H⁣I⁣ ⁣⁣⁣⁣⁣6⁣⁣O⁣ ⁣⁣⁣G⁣U⁣ ⁣⁣⁣⁣L⁣⁣⁣⁣⁣⁣⁣G⁣ ⁣
  • Colombo AquaTest Test Lab Professional Pond/Fresh/Marine Test Kit Advanced Fish - Image 1 of 4

    Colombo AquaTest Test Lab Professional Pond/Fresh/Marine Test Kit Advanced Fish

    Brand new · Colombo
    (38)
    £39.95
    Free postage
    Click & Collect
    431 sold
    ⁣⁣⁣⁣⁣⁣A⁣⁣⁣⁣T⁣ ⁣N⁣⁣L⁣⁣⁣⁣⁣ ⁣X⁣F⁣ ⁣⁣2⁣⁣⁣S⁣
  • TETRA POND STRIPS 6 IN 1 QUICK TEST KIT KOI FISH WATER QUALITY QUICK TETRAPOND - Image 1 of 4

    TETRA POND STRIPS 6 IN 1 QUICK TEST KIT KOI FISH WATER QUALITY QUICK TETRAPOND

    Brand new · Tétra
    (118)
    £12.99
    Free postage
    Click & Collect
    2,272 sold
    Z⁣1⁣⁣⁣⁣⁣ ⁣L⁣⁣F⁣ ⁣4⁣⁣C⁣⁣⁣ ⁣R⁣⁣W⁣⁣ ⁣⁣5⁣⁣⁣⁣K⁣
  • API Test Strips 5 in 1 pH KH GH Nitrate Nitrite Aquarium Fish Tank Water Quality - Image 1 of 1

    API Test Strips 5 in 1 pH KH GH Nitrate Nitrite Aquarium Fish Tank Water Quality

    Brand new · API
    (4)
    £11.99 to £26.99
    Free postage
    Click & Collect
    24 sold
    J⁣A⁣Ѕ⁣ ⁣Z⁣R⁣ ⁣p⁣6⁣o⁣A⁣ ⁣n⁣T⁣s⁣o⁣V⁣ ⁣C⁣V⁣r⁣e⁣ ⁣⁣d⁣⁣⁣ ⁣
  • JBL CombiSet Marine Aquarium Test Kit- pH, KH, NH4, NO2, NO3, PO4 Combi Set - Image 1 of 2

    JBL CombiSet Marine Aquarium Test Kit- pH, KH, NH4, NO2, NO3, PO4 Combi Set

    Brand new · JBL
    (4)
    £39.95
    Free postage
    Click & Collect
    270 sold
    S⁣B⁣M⁣ ⁣J⁣K⁣p⁣o⁣n⁣ ⁣s⁣о⁣Z⁣5⁣ ⁣P⁣r⁣e⁣E⁣d⁣ ⁣H⁣Z⁣ ⁣⁣⁣8⁣⁣
  • JBL CombiSet Test Kit For Freshwater Aquarium- pH, KH, CO2, NO2, NO3 + NH4 - Image 1 of 2

    JBL CombiSet Test Kit For Freshwater Aquarium- pH, KH, CO2, NO2, NO3 + NH4

    Brand new · JBL
    (4)
    £39.95
    Free postage
    Click & Collect
    204 sold
    S⁣p⁣X⁣o⁣A⁣n⁣ ⁣5⁣G⁣ѕ⁣ ⁣8⁣Q⁣o⁣ ⁣r⁣e⁣O⁣0⁣ ⁣d⁣8⁣L⁣⁣ ⁣P⁣⁣⁣
  • NT Labs Multi Test Lab For Aquarium NH4 NO2 NO3 PH GH KH Fish Tank Test Kit - Image 1 of 4

    NT Labs Multi Test Lab For Aquarium NH4 NO2 NO3 PH GH KH Fish Tank Test Kit

    Brand new
    (232)
    £24.99
    Free postage
    Click & Collect
    142 sold
    ⁣T⁣⁣⁣3⁣ ⁣⁣P⁣⁣⁣A⁣⁣⁣ ⁣⁣0⁣⁣W⁣⁣ ⁣⁣⁣⁣⁣0⁣4⁣⁣ ⁣
  • API MASTER TEST KITS FRESH WATER MARINE REEF SALTWATER STRIPS WATER FISH TANK - Image 1 of 2

    API MASTER TEST KITS FRESH WATER MARINE REEF SALTWATER STRIPS WATER FISH TANK

    Brand new · API
    (7)
    £12.99 to £32.99
    Free postage
    Click & Collect
    173 sold
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  • API Saltwater Master Test Kit for Saltwater Aquarium 550-Test Kit - Image 1 of 4

    API Saltwater Master Test Kit for Saltwater Aquarium 550-Test Kit

    Fast & Free Delivery On All Items | Multibuy Savings
    Brand new · API
    (69)
    £24.49
    (£24.49/Unit)
    Free postage
    Click & Collect
    274 sold
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  • API 5-IN-1 Test Strips Freshwater and Saltwater Aquarium Test Strips Pack of 100 - Image 1 of 4

    API 5-IN-1 Test Strips Freshwater and Saltwater Aquarium Test Strips Pack of 100

    Fast & Free Delivery On All Items | Multibuy Savings
    Brand new · API
    (4)
    £17.89
    (£17.89/Unit)
    Free postage
    Click & Collect
    442 sold
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  • Hanna Calcium Marine (ppm) HI-758 Checker - Image 1 of 3

    Hanna Calcium Marine (ppm) HI-758 Checker

    Brand new
    (2)
    £55.00
    Free postage
    7⁣C⁣⁣⁣⁣ ⁣A⁣⁣T⁣ ⁣⁣A⁣J⁣⁣⁣⁣ ⁣1⁣J⁣⁣ ⁣K⁣N⁣ ⁣O⁣⁣ ⁣⁣
  • Seachem Alert Combo pH & Ammonia Monitor 6 month/1 year Water Test Fish Tank - Image 1 of 1

    Seachem Alert Combo pH & Ammonia Monitor 6 month/1 year Water Test Fish Tank

    Brand new · Seachem
    (12)
    £15.20 to £16.95
    Free postage
    Click & Collect
    164 sold
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  • API Nitrate Test Kit for Freshwater & Saltwater Aquarium 90-Test Kit - Image 1 of 4

    API Nitrate Test Kit for Freshwater & Saltwater Aquarium 90-Test Kit

    Fast & Free Delivery On All Items | Multibuy Savings
    Brand new · API
    (33)
    £11.99
    (£11.99/Unit)
    Free postage
    Click & Collect
    418 sold
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  • TMC Salifert Profi Test Kit Saltwater Marine Reef Water Testing Coral Fish Tank - Image 1 of 1

    TMC Salifert Profi Test Kit Saltwater Marine Reef Water Testing Coral Fish Tank

    Brand new · Salifert
    (13)
    £10.09 to £13.40
    Free postage
    Click & Collect
    97 sold
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  • API GH & KH WATER TEST KIT FISH TANK TROPICAL POND GENERAL CARBONATE HARDNESS - Image 1 of 4

    API GH & KH WATER TEST KIT FISH TANK TROPICAL POND GENERAL CARBONATE HARDNESS

    Brand new · API
    (8)
    £11.99
    Free postage
    Click & Collect
    1,439 sold
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  • API MASTER SALTWATER TEST KIT MARINE pH AMMONIA FISH & REEF TANK AQUARIUM - Image 1 of 4

    API MASTER SALTWATER TEST KIT MARINE pH AMMONIA FISH & REEF TANK AQUARIUM

    Brand new · API
    (69)
    £29.99
    Free postage
    Click & Collect
    Only 2 left
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  • NT Labs Marine Lab Multi Test Kit Reef NH3 NO2 NO3 pH KH Mg Ca PO4 Aquarium Tank - Image 1 of 1

    NT Labs Marine Lab Multi Test Kit Reef NH3 NO2 NO3 pH KH Mg Ca PO4 Aquarium Tank

    Brand new
    (1)
    £31.99
    Free postage
    Click & Collect
    68 sold
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  • Reef Zlements ICP Saltwater Test Kits Send Off Specialist Testing Aquarium Fish - Image 1 of 2

    Reef Zlements ICP Saltwater Test Kits Send Off Specialist Testing Aquarium Fish

    Brand new
    £28.99 to £39.99
    Free postage
    Click & Collect
    35 sold
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  • Aquarium Test Kit Holder NT Labs tropical marine water nitrate (KIT NOT INC) - Image 1 of 1

    Aquarium Test Kit Holder NT Labs tropical marine water nitrate (KIT NOT INC)

    Brand new
    £9.99
    Free postage
    Click & Collect
    81 sold
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  • Colombo Quicktest 6-in-1 Pond Test Strips x50 Kit Freshwater Aquarium Fish Tank - Image 1 of 3

    Colombo Quicktest 6-in-1 Pond Test Strips x50 Kit Freshwater Aquarium Fish Tank

    Brand new · Colombo
    (5)
    £14.45
    Free postage
    Click & Collect
    Only 3 left
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  • Aquarium Test Tube Holder Rack Tropical / Pond Fish NT Labs Kit Stand Station - Image 1 of 4

    Aquarium Test Tube Holder Rack Tropical / Pond Fish NT Labs Kit Stand Station

    Brand new
    £11.75
    Free postage
    30 sold
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  • NT Labs Aquarium Lab Multi-Test Master Kit Water Testing Tropical Fish Tank - Image 1 of 4

    NT Labs Aquarium Lab Multi-Test Master Kit Water Testing Tropical Fish Tank

    Brand new
    (232)
    £27.99
    Was: £36.99was - £36.99
    Free postage
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    113 sold
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  • API 5 in 1 Test Strips Kit Aquarium PH Nitrate Nitrite GH KH 4 pcs - Image 1 of 1

    API 5 in 1 Test Strips Kit Aquarium PH Nitrate Nitrite GH KH 4 pcs

    Brand new · API
    (46)
    £5.49
    Free postage
    Only 1 left.
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  • API Reef Master Test Kit Tests Calcium Carbonate Hardness Phosphate & Nitrite - Image 1 of 4

    API Reef Master Test Kit Tests Calcium Carbonate Hardness Phosphate & Nitrite

    Fast & Free Delivery On All Items | Multibuy Savings
    Brand new · API
    (7)
    £27.49
    (£27.49/Unit)
    Free postage
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  • NT LABS MARINE MULTI AND REEF TEST KITS FOR AQUARIUM FISH TANKS TESTING KITS - Image 1 of 1

    NT LABS MARINE MULTI AND REEF TEST KITS FOR AQUARIUM FISH TANKS TESTING KITS

    Brand new · Aqua Medic
    (1)
    £27.75 to £33.95
    Free postage
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