Aquarium Test Kits

2,333 results

6-in-1 FISH TANK TEST STRIPS MARINE TROPICAL AQUARIUM TEST STRIPS 100pcs IN-326
Brand new
£7.95
Free postage
Click & Collect
339 sold
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
AQUAVERITY 7 IN 1 POND TEST STRIPS QUICK & EASY TO USE IN GARDEN PONDS 50 STRIPS
Brand new
£9.95
Free postage
Click & Collect
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
Est. delivery Tue, May 6
93 sold
NT LABS POND LAB 200 MULTI TEST KIT MASTER PONDLAB WATER SET PH GH KH NO2 NO4
Brand new · NT Labs
(115)
£24.49
Free postage
Click & Collect
2,620 sold
Total Water Hardness Test Strips Kit x 10 Drinking Water Softener Testing Setup
Brand new · SimplexHealth
(80)
£3.99
Free postage
7,223 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
Envii Pond Test Strips - Quick & Easy Test Kit Contains 25 Test Strips
Brand new
(7)
£11.95
Free postage
Click & Collect
630 sold
NT LABS AQUARIUM LAB MULTI-TEST MASTER KIT WATER TESTING TROPICAL FISH TANK
Brand new
(221)
£24.99
Free postage
Click & Collect
7,189 sold
SALIFERT PROFI TEST KIT RANGE MARINE REEF SALTWATER CORAL AQUARIUM FISH TANK
Brand new · Salifert
(12)
£9.85 to £34.95
Free postage
Click & Collect
1,167 sold
API 500 Pond Master Test Kit Tests pH, Ammonia, Nitraite & Phosphate
Fast & Free Delivery On All Items | Multibuy Savings
Brand new · API
(72)
£24.79
(£24.79/Unit)
Free postage
Click & Collect
379 sold
Tetra 6 in 1 Water Test Kit Aquarium - Nitrate PH KH Nitrite Tropical Fish Tank
Brand new · Tétra
(25)
£7.25
Free postage
Click & Collect
1,064 sold
SEACHEM AMMONIA ALERT TEST KIT AMMONIA MONITOR MARINE FRESH AQUARIUM FISH TANK
Brand new · Seachem
(98)
£11.05
Free postage
Click & Collect
4,108 sold
7 in 1 PH Test Fish Tank Water Tropical Aquarium Pond Water Test Strips Kit NEW
Brand new · Unbranded
£6.82 to £8.15
Free postage
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
253 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
224 sold
Hanna HI-774-25 Reagents for the HI-774 Marine phosphate ULR Checker *low price*
Brand new
£17.99
Free postage
Click & Collect
205 sold
NT LABS TEST KITS TROPICAL/COLDWATER AQUARIUM LAB WATER TESTING FISH TANK
Brand new
(3)
£8.25 to £24.99
Free postage
Click & Collect
404 sold
NT Labs Test Reagent Bottle Replacement Spare pH Nitrite GH Ammonia Fish Tank
Brand new
£3.19 to £29.99
Free postage
318 sold
PH Tester Tropical Aquarium Cold Water Fish Tank Testing Kit 80 Strips Universal
Brand new · Unbranded
(137)
£1.89
Free postage
8,113 sold
NT Labs Marine Lab Multi Test Kit Reef NH3 NO2 NO3 pH KH Mg Ca PO4 Aquarium Tank
Brand new
£25.45 to £55.95
Free postage
Click & Collect
69 sold
TETRA POND STRIPS 6 IN 1 QUICK TEST KIT KOI FISH WATER QUALITY QUICK TETRAPOND
Brand new · Tétra
(116)
£12.99
Free postage
Click & Collect
2,220 sold
Heavy Metals Water Test Strips Copper Cobalt Zinc Cadmium Nickel Lead x 5 Strips
Brand new
£3.99
Free postage
815 sold
API 5ml Test Tubes Spare for Test Kit with Caps Replacement Aquarium Fish Tank
Brand new · API
£4.05 to £21.95
Free postage
554 sold
Alkaline pH Test Litmus Paper Strips 0 - 14 for Water Urine & Saliva 5M Roll
Brand new · Simplex Health
(13)
£4.99
Free postage
1,087 sold
Salifert Calcium Magnesium Kh/alk test kit (one of each)
Brand new · Salifert
(9)
£33.99
Free postage
Click & Collect
5 watching
6 in 1 Aquarium Test Strips Kit - 125 Fresh Water Fish Tank Testing Strip
Brand new · Unbranded
£8.99
(£0.07/Unit)
Free postage
Click & Collect
27 sold
API Ammonia Test Kit for Freshwater & Saltwater Aquarium 130-Test Kit
Fast & Free Delivery On All Items | Multibuy Savings
Brand new · API
(56)
£11.99
(£11.99/Unit)
Free postage
Click & Collect
375 sold
7 in 1 PH Test Fish Tank Water Tropical Aquarium Pond Water Test Strips Kit NEW
Brand new · Unbranded
£6.29 to £8.19
Free postage
Seneye Slide Packs pH/NH3 Ammonia Replacement 3/6/12 Months Fish Tank Pond Reef
Brand new
£31.99 to £114.95
Free postage
Click & Collect
116 sold
7 in 1 PH Test Fish Tank Water Tropical Aquarium Pond Water Test Strips Kit NEW
Brand new · Unbranded
£6.29 to £8.19
Free postage
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
393 sold
API 5 in 1 AQUARIUM WATER TEST KIT DIP 25 STRIPS FRESHWATER SALTWATER FISH TANK
Brand new · API
(46)
£5.49 to £12.99
Free postage
Click & Collect
334 sold
7 in 1 PH Test Fish Tank Water Tropical Aquarium Pond Water Test Strips Kit NEW
Brand new · Unbranded
£8.99
Free postage
SEACHEM ALERT AMMONIA Ph COMBO MONITOR CONTINUOUS WATER TEST AQUARIUM FISH TANK
Brand new · Seachem
(66)
£13.95
Free postage
Click & Collect
45 sold
7 in 1 Aquarium Water Test Strips Kit - 7 Parameters in 30 Secs - pH, Nitrite +
Brand new
£5.99
(£0.12/100ml)
Free postage
Click & Collect
66 sold
SALIFERT pH PROFI TEST KIT FOR SALTWATER MARINE (50 TESTS) FISH TANK AQUARIUM
Brand new
£9.45
Free postage
Click & Collect
414 sold
Hanna 35ppt Salinity Calibration Sachet x1 (20ml)
Brand new
£3.65
or Best Offer
Free postage
53 sold
7 in 1 PH Test Fish Tank Water Tropical Aquarium Pond Water Test Strips Kit NEW
Brand new · Unbranded
£6.29 to £8.19
Free postage
7 in 1 PH Test Fish Tank Water Tropical Aquarium Pond Water Test Strips Kit UK
Brand new · Unbranded
£0.99 to £8.95
Free postage
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
Tetra Aquarium Water Test Kit 6 In 1 Tropical PH KH GH NO2 NO3 Chorine 10 Strips
Brand new · Tétra
(25)
£5.49
Free postage
Click & Collect
16 watching
NT Labs Aquarium Nitrate Test Lab For Tropical Coldwater Fish Tank NO3 Test Kit
Brand new
(6)
£7.50
Free postage
Click & Collect
105 sold
New listingHanna HI-774-25 Reagents for the HI-774 Marine phosphate ULR Checker. 25 Tests
Brand new
£15.98
Free postage
API POND MASTER TEST KIT GOLDFISH KOI TESTKIT POND CARE WATER FISH HEALTH GARDEN
Brand new · API
(72)
£25.99
Free postage
Click & Collect
594 sold
SALIFERT TEST KIT SET MARINE REEF SALTWATER CORAL AQUARIUM FISH TANK FULL SET
Brand new · Salifert
(15)
£74.99
Free postage
Click & Collect
166 sold
SEACHEM AMMONIA ALERT TEST KIT AMMONIA MONITOR MARINE FRESH AQUARIUM FISH TANK
Brand new · Seachem
(98)
£10.85
Free postage
Click & Collect
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
Interpet Bioactive Tapsafe Aquarium Water Dechlorinator & 50 ml (Pack of 1) New
Brand new · Interpet
(3)
£4.23
Free postage
Est. delivery Tue, May 6
44 sold
NT Labs Aquarium Fish Tank Tests Kit Ammonia Nitrite Nitrate PH GH KH Freshwater
Brand new
(2)
£7.99 to £9.95
Free postage
API Pond 5 in 1 Test Strips Pack Of 4 - Garden Pond Water Test Kit Fish Health
Brand new · API
(46)
£6.40
Free postage
1,060 sold
NT Labs Mini Test Kit 120 Tests For Freshwater & Tropical Aquariums Fish Tank
Brand new · NT Labs
(68)
£13.95
Free postage
Click & Collect
1,817 sold
API Saltwater Master Test Kit
Pre-owned · API
£17.35
Free postage
Water Testing Strips Kit Nitrate Nitrite Total Hardness Total Alkalinity pH x 5
Brand new
(6)
£3.99
Free postage
802 sold
Total Water Hardness Test Strips Kit x 20 Drinking Water Softener Testing Setup
Brand new
£5.99
Free postage
Click & Collect
462 sold
API Freshwater Master Test Kit
Pre-owned · API
£13.19
Free postage
Water Testing Strips Kit Nitrate Nitrite Test Strips x 5 Pack
Brand new
£3.99
Free postage
186 sold
Reef Zlements ICP Saltwater Test Kits Send Off Specialist Testing Aquarium Fish
Brand new
£28.99 to £39.99
Free postage
Click & Collect
10 watching
Hanna High Range Nitrate Reagent HI-782-25
Brand new
£25.95
Free postage
7 in 1 PH Test Fish Tank Water Tropical Aquarium Pond Water Test Strips Kit NEW
Brand new · Unbranded
£6.22 to £8.22
Free postage

Best Selling

See all

NT Labs Pondlab 200 Pond Water Parameter Test Kit (026322)
(115)
£24.49 New
API Freshwater Master Test Kit pH No2 Tropical Fish Tank
(243)
£29.99 New
£19.95 Used
NT Labs Aquarium Lab Multi-test Kit - NTLABS
(220)
£24.65 New
£6.96 Used
Tétra 6 in 1 Tropical Ph KH GH No2 No3 Cl3 Aquarium Water Test Kit
(25)
£5.49 New
API 164M Pond Care Master Test Kit
(72)
£24.79 New
API 5 in 1 Aquarium Test Kit - 4 Pack
(45)
£4.45 New
SimplexHealth Total Hardness Water Test Strips - Pack of 10
(80)
£3.99 New
Salifert MG Profi Test Kit Magnesium 50 Tests Marine Aquarium Fish Tank
(31)
£11.79 New

Top-rated

See all

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

98% agree - Would recommend
£29.99 New
£19.95 Used
NT Labs Aquarium Lab Multi-test Kit - NTLABS
(221)

98% agree - Would recommend
£24.65 New
£6.96 Used
Tetra Test 6in1 Strips Aquarium to Test 6 Essential Water Quality Parameters - Pack of 25
(144)

100% agree - Would recommend
£7.99 New
API 55898 5 in 1 Aquarium Test Strips - Pack of 25
(73)

100% agree - Would recommend
£9.99 New
NT Labs Aquarium Water pH Test Kit - 120 Count
(68)

100% agree - Would recommend
£10.69 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
IMPORT EFN UK 77002 eSHa Quick Test Ph Testing Strips 50
(12)

72% agree - Would recommend
£11.99 New

Brand

Water Type

Aquarium Test Kits

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2,333 results

6-in-1 FISH TANK TEST STRIPS MARINE TROPICAL AQUARIUM TEST STRIPS 100pcs IN-326

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

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

API Freshwaster And Saltwater Aquarium Test Kits

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

Total Water Hardness Test Strips Kit x 10 Drinking Water Softener Testing Setup

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

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

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

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

API 500 Pond Master Test Kit Tests pH, Ammonia, Nitraite & Phosphate

Tetra 6 in 1 Water Test Kit Aquarium - Nitrate PH KH Nitrite Tropical Fish Tank

SEACHEM AMMONIA ALERT TEST KIT AMMONIA MONITOR MARINE FRESH AQUARIUM FISH TANK

7 in 1 PH Test Fish Tank Water Tropical Aquarium Pond Water Test Strips Kit NEW

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

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

Hanna HI-774-25 Reagents for the HI-774 Marine phosphate ULR Checker *low price*

NT LABS TEST KITS TROPICAL/COLDWATER AQUARIUM LAB WATER TESTING FISH TANK

NT Labs Test Reagent Bottle Replacement Spare pH Nitrite GH Ammonia Fish Tank

PH Tester Tropical Aquarium Cold Water Fish Tank Testing Kit 80 Strips Universal

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

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

Heavy Metals Water Test Strips Copper Cobalt Zinc Cadmium Nickel Lead x 5 Strips

API 5ml Test Tubes Spare for Test Kit with Caps Replacement Aquarium Fish Tank

Alkaline pH Test Litmus Paper Strips 0 - 14 for Water Urine & Saliva 5M Roll

Salifert Calcium Magnesium Kh/alk test kit (one of each)

6 in 1 Aquarium Test Strips Kit - 125 Fresh Water Fish Tank Testing Strip

API Ammonia Test Kit for Freshwater & Saltwater Aquarium 130-Test Kit

7 in 1 PH Test Fish Tank Water Tropical Aquarium Pond Water Test Strips Kit NEW

Seneye Slide Packs pH/NH3 Ammonia Replacement 3/6/12 Months Fish Tank Pond Reef

7 in 1 PH Test Fish Tank Water Tropical Aquarium Pond Water Test Strips Kit NEW

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

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

7 in 1 PH Test Fish Tank Water Tropical Aquarium Pond Water Test Strips Kit NEW

SEACHEM ALERT AMMONIA Ph COMBO MONITOR CONTINUOUS WATER TEST AQUARIUM FISH TANK

7 in 1 Aquarium Water Test Strips Kit - 7 Parameters in 30 Secs - pH, Nitrite +

SALIFERT pH PROFI TEST KIT FOR SALTWATER MARINE (50 TESTS) FISH TANK AQUARIUM

Hanna 35ppt Salinity Calibration Sachet x1 (20ml)

7 in 1 PH Test Fish Tank Water Tropical Aquarium Pond Water Test Strips Kit NEW

7 in 1 PH Test Fish Tank Water Tropical Aquarium Pond Water Test Strips Kit UK

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

Tetra Aquarium Water Test Kit 6 In 1 Tropical PH KH GH NO2 NO3 Chorine 10 Strips

NT Labs Aquarium Nitrate Test Lab For Tropical Coldwater Fish Tank NO3 Test Kit

New listingHanna HI-774-25 Reagents for the HI-774 Marine phosphate ULR Checker. 25 Tests

API POND MASTER TEST KIT GOLDFISH KOI TESTKIT POND CARE WATER FISH HEALTH GARDEN

SALIFERT TEST KIT SET MARINE REEF SALTWATER CORAL AQUARIUM FISH TANK FULL SET

SEACHEM AMMONIA ALERT TEST KIT AMMONIA MONITOR MARINE FRESH AQUARIUM FISH TANK

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

Interpet Bioactive Tapsafe Aquarium Water Dechlorinator & 50 ml (Pack of 1) New

NT Labs Aquarium Fish Tank Tests Kit Ammonia Nitrite Nitrate PH GH KH Freshwater

API Pond 5 in 1 Test Strips Pack Of 4 - Garden Pond Water Test Kit Fish Health

NT Labs Mini Test Kit 120 Tests For Freshwater & Tropical Aquariums Fish Tank

API Saltwater Master Test Kit

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

Total Water Hardness Test Strips Kit x 20 Drinking Water Softener Testing Setup

API Freshwater Master Test Kit

Water Testing Strips Kit Nitrate Nitrite Test Strips x 5 Pack

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

Hanna High Range Nitrate Reagent HI-782-25

7 in 1 PH Test Fish Tank Water Tropical Aquarium Pond Water Test Strips Kit NEW

Best Selling

NT Labs Pondlab 200 Pond Water Parameter Test Kit (026322)

API Freshwater Master Test Kit pH No2 Tropical Fish Tank

NT Labs Aquarium Lab Multi-test Kit - NTLABS

Tétra 6 in 1 Tropical Ph KH GH No2 No3 Cl3 Aquarium Water Test Kit

API 164M Pond Care Master Test Kit

API 5 in 1 Aquarium Test Kit - 4 Pack

SimplexHealth Total Hardness Water Test Strips - Pack of 10

Salifert MG Profi Test Kit Magnesium 50 Tests Marine Aquarium Fish Tank

Top-rated

API Freshwater Master Test Kit pH No2 Tropical Fish Tank

NT Labs Aquarium Lab Multi-test Kit - NTLABS

Tetra Test 6in1 Strips Aquarium to Test 6 Essential Water Quality Parameters - Pack of 25

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

NT Labs Aquarium Water pH Test Kit - 120 Count

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

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

Hanna HI-774-25 Reagents for the HI-774 Marine phosphate ULR Checker low price