API Aquarium Fresh Water Test Kits

118 results

API Freshwater Master Test Kit Liquid pH Ammonia Nitrite Nitrate for Fish Tank
Fast & Free Delivery On All Items | Multibuy Savings
Brand new · API
(243)
£29.99
(£29.99/Unit)
Free postage
Click & Collect
1,177 sold
API Freshwaster And Saltwater Aquarium Test Kits
Fast & Free Delivery On All Items | Multibuy Savings
Brand new · API
£6.99 to £29.99
Free postage
Click & Collect
93 sold
API Phosphate Test Kit for Freshwater & Saltwater Aquarium 150-Test Kit
Fast & Free Delivery On All Items | Multibuy Savings
Brand new · API
(27)
£11.99
(£11.99/Unit)
Free postage
Click & Collect
226 sold
API FRESH WATER MASTER TEST KIT 800 TESTS AQUARIUM FISH TANK pH Nitrate/Nitrite
Brand new · API
£29.95
Free postage
Click & Collect
3,690 sold
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
(7)
£11.49
(£11.49/Unit)
Free postage
Click & Collect
454 sold
API MASTER TEST KITS FRESH WATER MARINE REEF SALTWATER STRIPS WATER FISH TANK
Brand new · API
(69)
£12.99 to £32.99
Free postage
Click & Collect
243 sold
API Saltwater Master Test Kit
Pre-owned · API
£17.35
Free postage
API pH Test Kit for Freshwater Aquarium 150-Test Kit For Fresh Water
Fast & Free Delivery On All Items | Multibuy Savings
Brand new · API
(21)
£9.79
(£9.79/Unit)
Free postage
Click & Collect
226 sold
API Test Kits Ammonia Nitrate Nitrite pH KH GH Phosphate Freshwater Marine
Brand new · API
(7)
£8.49 to £19.99
Free postage
Click & Collect
85 sold
API Freshwater Master Test Kit
Pre-owned · API
£13.19
Free postage
API Test Kits Ammonia GH & KH Nitrate Nitrite Ph Phosphate Ca Cu 5in1 Strips
Brand new · API
(243)
£6.75 to £30.75
Free postage
Click & Collect
API Freshwater pH Test & Adjuster Kit Deluxe For Fresh Water
Fast & Free Delivery On All Items | Multibuy Savings
Brand new · API
(7)
£11.99
(£11.99/Unit)
Free postage
Click & Collect
84 sold
API High Range pH Test Kit Freshwater & Saltwater Aquarium 160-Test Kit
Fast & Free Delivery On All Items | Multibuy Savings
Brand new · API
(5)
£9.25
(£9.25/Unit)
Free postage
Click & Collect
API Test Strips 5 in 1 pH KH GH Nitrate Nitrite Aquarium Fish Tank Water Quality
Brand new · API
(13)
£11.99 to £26.99
Free postage
Click & Collect
API 5-IN-1 TEST STRIPS Freshwater and Saltwater Aquarium Test Strips 25-Count
Brand new · API
£12.97
(£0.52/Unit)
Free postage
Click & Collect
API Phosphate PO4 Test Kit for Tropical, Coldwater & Marine Aquariums
Brand new · API
(27)
£12.99
Free postage
Click & Collect
633 sold
API Freshwater Master Test Kit Fish Aquarium Tank Water Testing
Brand new · API
(243)
£32.99
Free postage
Click & Collect
API pH TEST & ADJUSTER KIT AQUARIUM WATER ACIDITY ALKALI FRESHWATER HEALTHY FISH
Brand new · API
(7)
£12.50
Free postage
Click & Collect
70 sold
API Carbonate Hardness Test Kit for Freshwater & Saltwater Aquarium Test Kit
Fast & Free Delivery On All Items | Multibuy Savings
Brand new · API
(9)
£8.99
(£8.99/Unit)
Free postage
Click & Collect
53 sold
API Copper Test Kit for Freshwater & Saltwater 90-Test Aquarium Test Kit
Fast & Free Delivery On All Items | Multibuy Savings
Brand new · API
(3)
£11.59
(£11.59/Unit)
Free postage
Click & Collect
API Test Kits Aquarium Water Testing pH NO2 NO3 Liquid Strips Master Fresh Marin
Brand new · API
(243)
£6.59 to £35.96
Free postage
Click & Collect
API Liquid pH Test Kit Set Freshwater Aquarium Tank
Brand new · API
(21)
£9.15
Free postage
Only 3 left
API pH Test Kit Liquid Aquarium Tank Water Quality Freshwater Checker
Brand new · API
(21)
£14.99
Free postage
Click & Collect
Only 2 left
API pH Test & Adjuster Kit Aquarium Fish Water Testing + pH up pH down Adjusters
Brand new · API
(7)
£11.98
Free postage
Click & Collect
API AQUARIUM MASTER FRESH WATER TEST KIT FISH TANK CALCIUM AMMONIA NITRATE PH
Brand new · API
(2)
£39.95
Free postage
Click & Collect
12 sold
API 5 in 1 Test Kit Pack of 4 Fresh and Salt water Aquarium Fish Tank Dip Strips
Brand new · API
(46)
£6.40
Free postage
801 sold
API Aquarium Fish Tank Testing Kit Freshwater PH Test Kit
Brand new · API
(21)
£9.99
Free postage
Click & Collect
API Freshwaster And Saltwater Aquarium Test Kits
Brand new · API
(5)
£10.82 to £35.82
Free postage
Click & Collect
API GH & KH WATER TEST KIT FISH TANK TROPICAL POND GENERAL CARBONATE HARDNESS
Brand new · API
(7)
£11.45
Free postage
Click & Collect
1,395 sold
API Aquarium Test Strips 5 in 1 water test kit for Fresh or Marine Tanks
Brand new · API
£12.49
Free postage
356 sold
API Aquarium Test Kit STAND. For Tropical Freshwater Fish Tanks Water Testing
Brand new · API
£13.19 to £14.23
Free postage
Click & Collect
API AQUARIUM TEST KITS FRESH SALT MARINE WATER FISH TANK PH NITRTITE AMMONIA
Brand new · API
(2)
£28.95 to £39.95
Free postage
Click & Collect
API Freshwater Mini pH Kit Aquarium Water Testing Freshwater 150 tests
Brand new · API
(21)
£10.65
Free postage
Click & Collect
API General & Carbonate Hardness GH & KH Test Kit Tropical Freshwater Fish Ponds
Brand new · API
(7)
£11.85
Free postage
Click & Collect
4 watching
API 5 in 1 Test Strips - 25 Strip Pack Test Kit Fresh & Salt Water Aquarium Fish
Brand new · API
(73)
£13.51
Free postage
421 sold
API AQUARIUM 5 IN 1 WATER TEST KIT TESTING FRESH OR SALT WATER FISH TANK 25 PACK
Brand new · API
(73)
£13.95
Free postage
Click & Collect
API pH TEST & ADJUSTER KIT AQUARIUM WATER ACIDITY ALKALI FRESHWATER HEALTHY FISH
Brand new · API
(7)
£9.56
or Best Offer
Free postage
Click & Collect
API PH TEST KIT 250-Test Freshwater Aquarium Water pH Test Kit
Brand new · API
(21)
£12.53
Free postage
Click & Collect
API pH Alkaline Acidic Test Kit Freshwater Aquarium Water Fish Plants 250 Tests
Brand new · API
£14.39
Free postage
API Ammonia Test Strips 25 Pack Aquarium Freshwater Fish Tank Water Quality
Brand new · API
(5)
£18.99
Free postage
Click & Collect
API Carbonate Hardness Kit Aquarium Marine Freshwater Fish Tank Water Testing KH
Brand new · API
(9)
£9.35
Free postage
Click & Collect
API Phosphate Liquid Water Test Kit for Freshwater and Marine Aquariums PO4
Brand new · API
(27)
£12.98
Free postage
427 sold
API PH HIGH RANGE LIQUID TEST KIT FOR FISH TANK AQUARIUMS
Brand new · API
(5)
£9.75
Free postage
Click & Collect
API AQUARIUM 5 IN 1 WATER TEST KIT TESTING FRESH OR SALT WATER FISH TANK 4 PACK
Brand new · API
(46)
£7.49
Free postage
Click & Collect
API KH LIQUID TEST KIT FOR FISH TANK AQUARIUMS
Brand new · API
(9)
£9.45
Free postage
Click & Collect
API General Carbonate Hardness Kit Freshwater Tap Water Aquarium Water GH KH
Brand new · API
(7)
£11.90
Free postage
Click & Collect
API NITRITE AND NITRATE DUO PACK AQUARIUM FISH TANKS WATER QUALITY TEST KIT
Brand new · API
£23.09
Free postage
Click & Collect
API PHOSPHATE LIQUID TEST KIT FOR FISH TANK AQUARIUMS MARINE AND FRESH WATER
Brand new · API
(27)
£12.82
Free postage
Click & Collect
API pH Test Kit for Freshwater Aquarium For Fresh Water
Brand new · API
(21)
£9.56
(£9.56/Unit)
or Best Offer
Free postage
Click & Collect
API PH AND NITRITE DUO PACK AQUARIUM FISH TANKS WATER QUALITY TESTING KIT
Brand new · API
£21.99
Free postage
Click & Collect
API Nitrite Test Kit
Brand new · API
£10.49
£4.50 P&P
API KH Test Kit Carbonate Hardness Liquid Aquarium Tank Alkalinity Water Quality
Brand new · API
(9)
£13.49
Free postage
Click & Collect
API Copper Test Kit
Brand new · API
£9.79
£4.50 P&P
API pH Test Kit - for pH 6.0 - 7.6
Brand new · API
£6.99
£4.50 P&P
API Freshwater Aquarium Easy to use Water Conditions Master At Home Test Kit
Brand new · API
(243)
£44.39
(£44.39/Unit)
Free postage
Click & Collect
API Liquid Phosphate Test Kit Aquarium Freshwater Marine Water Testing PO4
Brand new · API
(27)
£14.26
Free postage
Click & Collect
API Freshwater Fish Aquarium Water Test Kit
Brand new · API
(243)
£47.99
Free postage
Click & Collect
API Test Strips 5 in 1 pH KH GH Nitrate Aquarium Fish Tank Water Quality New
Brand new · API
£17.35
or Best Offer
Free postage
Click & Collect
API Phosphate Test Kit PO4 Liquid Aquarium Tank Alkalinity Water Quality Algae
Brand new · API
(27)
£17.99
Free postage
Click & Collect
Fresh Salt Water Fish Tank Aquarium Monitor Copper Test Kit (90 Tests Size)
Pre-owned · API
(10)
£127.44
or Best Offer
£20.80 P&P

Best Selling

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Top-rated

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API Freshwater Master Test Kit pH No2 Tropical Fish Tank
(243)

98% agree - Would recommend
£29.99 New
£19.95 Used
API 55898 5 in 1 Aquarium Test Strips - Pack of 25
(73)

100% agree - Would recommend
£9.99 New
API LR8600 Ammonia Test Kit for Aquarium - Pack of 130 Tests
(56)

100% agree - Would recommend
£11.95 New
API Phosphate Test Kit - Tropical Coldwater and Marines Fish Tank Aquarium
(27)

96% agree - Would recommend
£11.99 New
API KH Test Kit Carbonate Hardness Fish Tank Aquarium Tropical Coldwater & Pond
(9)

100% agree - Would recommend
£8.49 New
Al86 API Freshwater Deluxe Ph 6 - 7.6 Test Kit Aquarium Tropical Fish Tank 250
(7)

100% agree - Would recommend
£8.50 New
API 5 in 1 Aquarium Test Kit - 4 Pack
(46)

91% agree - Would recommend
£4.45 New
API LR1800 Nitrate Aquarium Fish Tank Fresh and Salt Water Test Kit - 90 Tests
(33)

100% agree - Would recommend
£11.99 New

API Aquarium Fresh Water Test Kits

Shop by category

118 results

API Freshwater Master Test Kit Liquid pH Ammonia Nitrite Nitrate for Fish Tank

API Freshwaster And Saltwater Aquarium Test Kits

API Phosphate Test Kit for Freshwater & Saltwater Aquarium 150-Test Kit

API FRESH WATER MASTER TEST KIT 800 TESTS AQUARIUM FISH TANK pH Nitrate/Nitrite

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

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

API Saltwater Master Test Kit

API pH Test Kit for Freshwater Aquarium 150-Test Kit For Fresh Water

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

API Freshwater Master Test Kit

API Test Kits Ammonia GH & KH Nitrate Nitrite Ph Phosphate Ca Cu 5in1 Strips

API Freshwater pH Test & Adjuster Kit Deluxe For Fresh Water

API High Range pH Test Kit Freshwater & Saltwater Aquarium 160-Test Kit

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

API 5-IN-1 TEST STRIPS Freshwater and Saltwater Aquarium Test Strips 25-Count

API Phosphate PO4 Test Kit for Tropical, Coldwater & Marine Aquariums

API Freshwater Master Test Kit Fish Aquarium Tank Water Testing

API pH TEST & ADJUSTER KIT AQUARIUM WATER ACIDITY ALKALI FRESHWATER HEALTHY FISH

API Carbonate Hardness Test Kit for Freshwater & Saltwater Aquarium Test Kit

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

API Test Kits Aquarium Water Testing pH NO2 NO3 Liquid Strips Master Fresh Marin

API Liquid pH Test Kit Set Freshwater Aquarium Tank

API pH Test Kit Liquid Aquarium Tank Water Quality Freshwater Checker

API pH Test & Adjuster Kit Aquarium Fish Water Testing + pH up pH down Adjusters

API AQUARIUM MASTER FRESH WATER TEST KIT FISH TANK CALCIUM AMMONIA NITRATE PH

API 5 in 1 Test Kit Pack of 4 Fresh and Salt water Aquarium Fish Tank Dip Strips

API Aquarium Fish Tank Testing Kit Freshwater PH Test Kit

API Freshwaster And Saltwater Aquarium Test Kits

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

API Aquarium Test Strips 5 in 1 water test kit for Fresh or Marine Tanks

API Aquarium Test Kit STAND. For Tropical Freshwater Fish Tanks Water Testing

API AQUARIUM TEST KITS FRESH SALT MARINE WATER FISH TANK PH NITRTITE AMMONIA

API Freshwater Mini pH Kit Aquarium Water Testing Freshwater 150 tests

API General & Carbonate Hardness GH & KH Test Kit Tropical Freshwater Fish Ponds

API 5 in 1 Test Strips - 25 Strip Pack Test Kit Fresh & Salt Water Aquarium Fish

API AQUARIUM 5 IN 1 WATER TEST KIT TESTING FRESH OR SALT WATER FISH TANK 25 PACK

API pH TEST & ADJUSTER KIT AQUARIUM WATER ACIDITY ALKALI FRESHWATER HEALTHY FISH

API PH TEST KIT 250-Test Freshwater Aquarium Water pH Test Kit

API pH Alkaline Acidic Test Kit Freshwater Aquarium Water Fish Plants 250 Tests

API Ammonia Test Strips 25 Pack Aquarium Freshwater Fish Tank Water Quality

API Carbonate Hardness Kit Aquarium Marine Freshwater Fish Tank Water Testing KH

API Phosphate Liquid Water Test Kit for Freshwater and Marine Aquariums PO4

API PH HIGH RANGE LIQUID TEST KIT FOR FISH TANK AQUARIUMS

API AQUARIUM 5 IN 1 WATER TEST KIT TESTING FRESH OR SALT WATER FISH TANK 4 PACK

API KH LIQUID TEST KIT FOR FISH TANK AQUARIUMS

API General Carbonate Hardness Kit Freshwater Tap Water Aquarium Water GH KH

API NITRITE AND NITRATE DUO PACK AQUARIUM FISH TANKS WATER QUALITY TEST KIT

API PHOSPHATE LIQUID TEST KIT FOR FISH TANK AQUARIUMS MARINE AND FRESH WATER

API pH Test Kit for Freshwater Aquarium For Fresh Water

API PH AND NITRITE DUO PACK AQUARIUM FISH TANKS WATER QUALITY TESTING KIT

API Nitrite Test Kit

API KH Test Kit Carbonate Hardness Liquid Aquarium Tank Alkalinity Water Quality

API Copper Test Kit

API pH Test Kit - for pH 6.0 - 7.6

API Freshwater Aquarium Easy to use Water Conditions Master At Home Test Kit

API Liquid Phosphate Test Kit Aquarium Freshwater Marine Water Testing PO4

API Freshwater Fish Aquarium Water Test Kit

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

API Phosphate Test Kit PO4 Liquid Aquarium Tank Alkalinity Water Quality Algae

Fresh Salt Water Fish Tank Aquarium Monitor Copper Test Kit (90 Tests Size)

Best Selling

API Freshwater Master Test Kit pH No2 Tropical Fish Tank

API 5 in 1 Aquarium Test Kit - 4 Pack

API 55898 5 in 1 Aquarium Test Strips - Pack of 25

API LR8600 Ammonia Test Kit for Aquarium - Pack of 130 Tests

API GH & KH TEST KIT Freshwater Aquarium Water Test Kit

API Phosphate Test Kit - Tropical Coldwater and Marines Fish Tank Aquarium

API LR1800 Nitrate Aquarium Fish Tank Fresh and Salt Water Test Kit - 90 Tests

API KH Test Kit Carbonate Hardness Fish Tank Aquarium Tropical Coldwater & Pond

Top-rated

API Freshwater Master Test Kit pH No2 Tropical Fish Tank

API 55898 5 in 1 Aquarium Test Strips - Pack of 25

API LR8600 Ammonia Test Kit for Aquarium - Pack of 130 Tests

API Phosphate Test Kit - Tropical Coldwater and Marines Fish Tank Aquarium

API KH Test Kit Carbonate Hardness Fish Tank Aquarium Tropical Coldwater & Pond

Al86 API Freshwater Deluxe Ph 6 - 7.6 Test Kit Aquarium Tropical Fish Tank 250

API 5 in 1 Aquarium Test Kit - 4 Pack