Nitrate Aquarium Fresh Water Test Kits

236 results

Drinking Tap Well Water Test Kit pH Alkalinity Hardness Iron Nitrate Test Strips
Brand new · Unbranded
£14.98
Free postage
NT LABS AQUARIUM LAB MULTI-TEST MASTER KIT WATER TESTING TROPICAL FISH TANK
Brand new
(221)
£25.99
Free postage
Click & Collect
7,239 sold
Watersafe Drinking Water Test Kit for Well or Tap Water WS-425C
Brand new
£29.99
Free postage
Click & Collect
831 sold
API FRESH WATER MASTER TEST KIT 800 TESTS AQUARIUM FISH TANK pH Nitrate/Nitrite
Brand new · API
£29.95
Free postage
Click & Collect
3,745 sold
API FRESH WATER MASTER TEST KIT 800 TESTS AQUARIUM FISH TANK pH Nitrate/Nitrite
Brand new · API
(243)
£23.75
Free postage
25 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
1,198 sold
NT LABS TEST KITS TROPICAL/COLDWATER AQUARIUM LAB WATER TESTING FISH TANK
Brand new
(3)
£7.95 to £25.99
Free postage
Click & Collect
410 sold
TETRA TEST 6 IN 1 TEST STRIPS PH KH GH NITRITE NITRATE CHLORINE AQUARIUM FISH
Brand new · Tétra
(144)
£8.99
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
126 sold
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
171 sold
Nt Labs Aquarium Labs Testing Kits Tropical Cold Water Pond Fish Tank Multi Test
Brand new
(221)
£8.95 to £26.95
Free postage
Click & Collect
74 sold
API Test Kits Ammonia Nitrate Nitrite pH KH GH Phosphate Freshwater Marine
Brand new · API
(7)
£8.49 to £14.99
Free postage
Click & Collect
88 sold
BLAGDON WATER QUALITY POND DIP TEST KIT 60 TESTS Ph Ammonia Nitrite Nitate GH KH
Brand new · Interpet
(3)
£14.95
Free postage
43 sold
100Pcs 16 IN 1 Drinking Water Test Strips Water Test Kit For Home Water Testing
Brand new · Unbranded
£13.95
Free postage
6 watching
6 in 1 Aquarium Test Kit 150 Strips Pack Aquarium Fish Tank Pond FreshWater Test
Pre-owned
£12.31
or Best Offer
Free postage
Click & Collect
Only 1 left.
JBL ProAquaTest Lab Water Test Case
Pre-owned · JBL
£94.32
or Best Offer
£7.19 P&P
NT Labs Mini Test Kit 120 Tests For Freshwater & Tropical Aquariums Fish Tank
Brand new · NT Labs
(68)
£13.95
Free postage
Click & Collect
1,826 sold
Tetra 6 in 1 Aquarium Water Tropical Test Kit Fish Tank Nitrate Nitrite PH kh
Brand new · Tétra
(144)
£6.99
Free postage
Click & Collect
2,094 sold
Tetra Test Kits Water Testing Sets for Fish Tanks Ponds pH KH GH NO2 NO3 O2
Brand new · Tétra
(144)
£6.99 to £14.96
Free postage
Click & Collect
SALIFERT NITRATE NO3 PROFI TEST KIT MARINE REEF FISH TANK AQUARIUM
Brand new
£12.45
Free postage
Click & Collect
846 sold
API Test Kits Aquarium Water Testing pH NO2 NO3 Liquid Strips Master Fresh Marin
Brand new · API
(243)
£6.79 to £35.96
Free postage
Click & Collect
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
1,085 sold
NT Labs Aquarium Test Kits PH Nitrate Hardness Ammonia Master Multi lab Tests
Brand new
(221)
£7.99 to £24.99
Free postage
Click & Collect
636 sold
6 in 1 Aquarium Test Strips Kit - 125 Fresh Water Fish Tank Testing Strip
Brand new
£2.80
(£0.02/Unit)
or Best Offer
£3.45 P&P
Tetra 6in1 Aquarium Test Kit Tropical PH KH GH NO2 NO3 Chlorine 25 Strips
Brand new · Tétra
(25)
£9.99
Free postage
Click & Collect
Waterlife Multi Test Kits Aquarium/Pond pH Nitrate Ammonia Levels Fish Tank Koi
Brand new · Waterlife
(2)
£6.50 to £12.95
Free postage
Click & Collect
JBL PROSCAN WATER ANALYSIS FOR SMARTPHONE TEST KIT APP AQUARIUM FRESH FISH TANK
Brand new · JBL
(47)
£16.95
Free postage
Click & Collect
592 sold
NT Labs Aquarium Fish Tank Tests Kit Ammonia Nitrite Nitrate PH GH KH Freshwater
Brand new
(6)
£7.99 to £8.25
Free postage
100x 5 In 1 Aquarium Test Strips Kit Fish Tank Pond Water Fresh PH Tester BT♐ .f
Brand new · Unbranded
£10.91
Free postage
100pcs 16 IN 1 Drinking Water Test Strips For Home Well Water Quality Testing
Brand new · Unbranded
£14.98
Free postage
JBL CombiSet Test Kit For Freshwater Aquarium- pH, KH, CO2, NO2, NO3 + NH4
Brand new · JBL
(4)
£39.95
Free postage
Click & Collect
200 sold
SimplexHealth Nitrate & Nitrite Water Test (50 strips)
Brand new
£14.99
Free postage
Click & Collect
118 sold
JBL PROSCAN RECHARGE WATER-ANALYSIS STRIPS FOR SMARTPHONE APP AQUARIUM FISH TANK
Brand new · JBL
(31)
£14.75
Free postage
Click & Collect
507 sold
NT Labs Water Treatment Mini Test Kit for Fish & Aquarium Freshwater 120 Tests
Brand new · NT Labs
(68)
£10.69
or Best Offer
£2.29 P&P
25 sold
Aquacadabra Freshwater Aquarium Test Kit Nitrate Nitrite pH Water Hardness
Brand new
£9.99 to £10.99
Free postage
Click & Collect
JBL Pro AquaTest Lab Freshwater Aquarium Kit Professional Fish Tank Aqua Test
Brand new · JBL
(4)
£87.95
Free postage
Click & Collect
104 sold
JBL TestLab & TestLab Marin Aquarium Fish Tank Multi Test Kit Freshwater & Marin
Brand new · JBL
(4)
£83.53 to £87.90
Free postage
Click & Collect
77 sold
API Test Strips 5 in 1 pH KH GH Nitrate Nitrite Aquarium Fish Tank Water Quality
Brand new · API
(4)
£16.99 to £26.99
Free postage
Click & Collect
18 sold
NT Labs Test Kit Aquarium Fish Tank Tropical Freshwater Lab Testing pH & More
Brand new
(3)
£11.49
Free postage
Click & Collect
Aquarium Testing Kit for Freshwater Saltwater Pond Test Strips Fish Tank PH
Brand new · Unbranded
£9.29 to £11.59
Free postage
Click & Collect
Aquarium Test Kit Tetra Fish Tank Water 6in1 Tropical PH KH GH NO2 NO3 Chlorine
Brand new · Tétra
(25)
£7.49 to £16.99
Free postage
Click & Collect
142 sold
Tetra 6 In 1 Aquarium Water Test Strips | Fish
Brand new · Tétra
(25)
£8.25 to £17.56
Free postage
Click & Collect
57 sold
7-in-1 & Ammonia Aquarium Test Strips, Water Testing Kit for Freshwater & Marine
Brand new
(6)
£10.99 to £19.99
Free postage
Click & Collect
130 sold
JBL Combi Test Set Freshwater Aquarium Fish Tank Multi Test Kit 6 Kits
Brand new · JBL
(4)
£39.90
Free postage
Click & Collect
Simplex Health Drinking Water All-in-One Test Kit 12 in One
Brand new
(1)
£29.99
Free postage
Click & Collect
223 sold
Tetra Test 6 in 1 Strip 10 strips Aquarium Water Testing Kit pH KH GH NO2 NO3 CL
Brand new · Tétra
(25)
£6.99
Free postage
Click & Collect
TETRA TEST KITS FOR AQUARIUMS FISH TANKS PH NO2 NO3 NH4 KH GH O2 WATER TESTS
Brand new · Tétra
(25)
£6.25 to £25.95
Free postage
Click & Collect
JBL Easy Test 7in1 Test Strips Kit pH Nitrate Nitrite Chlorine CO2 etc Aquarium
Brand new · JBL
(3)
£14.99
Free postage
Click & Collect
200 sold
Interpet Bioactive Tapsafe Plus Aquarium Protective Fish Tank 50, 125, 250 500ml
Brand new · Interpet
(3)
£6.49 to £14.49
Free postage
Click & Collect
API Freshwater Master Test Kit Fish Aquarium Tank Water Testing
Brand new · API
(243)
£32.99
Free postage
Click & Collect
API AQUARIUM TEST KITS FRESH SALT MARINE WATER FISH TANK PH NITRTITE AMMONIA
Brand new · API
(2)
£33.95 to £39.95
Free postage
Click & Collect
Tetra Nitrite Test Kit for Ponds and Aquariums
Brand new · Tétra
(9)
£6.99
Free postage
Click & Collect
NT Labs Aquarium Water Mini Test pH Ammonia Nitrite Testing Kit 120 Tests
Brand new · NT Labs
(68)
£16.95
Free postage
Click & Collect
407 sold
API Test Kits Ammonia GH & KH Nitrate Nitrite Ph Phosphate Ca Cu 5in1 Strips
Brand new · API
(243)
£6.75 to £34.95
Free postage
Click & Collect
Interpet Bioactive Tap Safe 50ml 125ml 250ml 500ml Aquarium Fish Tank Chlorine
Brand new · Interpet
(3)
£6.22 to £22.99
Free postage
Click & Collect
216 sold
NT Labs Pond Broad Range PH Test Lab For Garden Koi Goldfish Test Kit
Brand new
(3)
£8.90
Free postage
Click & Collect
54 sold
NT Labs PH Test Kits Pond Lab PH 6 - 9 Broad Range Testing Koi Pond Water
Brand new
(3)
£8.90
Free postage
Click & Collect
13 sold
Drinking Water Quality Home Test Kit 12 Tests One Kit match to UK levels
Brand new
£29.99
Free postage
Click & Collect
61 sold
JBL PROSCAN WATER ANALYSIS KIT & RECHARGE REFILL TEST SMARTPHONE AQUARIUM TANK
Brand new · JBL
(47)
£14.75 to £28.99
Free postage
Click & Collect
592 sold
100x 5 In 1 Aquarium Test Strips Kit Fish Tank Pond Water Fresh PH Tester BT*_^
Brand new · Unbranded
£10.99
Free postage

Top-rated

See all

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

98% agree - Would recommend
£23.96 New
NT Labs Aquarium Lab Multi-test Kit - NTLABS
(221)

98% agree - Would recommend
£24.99 New
Tetra Test 6in1 Strips Aquarium to Test 6 Essential Water Quality Parameters - Pack of 25
(144)

100% agree - Would recommend
£6.99 New
API 55898 5 in 1 Aquarium Test Strips - Pack of 25
(73)

100% agree - Would recommend
£6.00 New
NT Labs Aquarium Water pH Test Kit - 120 Count
(68)

100% agree - Would recommend
£10.69 New
JBL ProScan Recharge Aquarium Test Strips Refill - 24 Count (2542100)
(31)

96% agree - Would recommend
£14.75 New
IMPORT EFN UK 77002 eSHa Quick Test Ph Testing Strips 50
(12)

72% agree - Would recommend
£11.99 New
JBL PROSCAN Water Analysis by Smartphone - Test Set
(47)

88% agree - Would recommend
£16.39 New

Nitrate Aquarium Fresh Water Test Kits

Shop by category

236 results

Drinking Tap Well Water Test Kit pH Alkalinity Hardness Iron Nitrate Test Strips

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

Watersafe Drinking Water Test Kit for Well or Tap Water WS-425C

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

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

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

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

TETRA TEST 6 IN 1 TEST STRIPS PH KH GH NITRITE NITRATE CHLORINE AQUARIUM FISH

API Freshwaster And Saltwater Aquarium Test Kits

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

Nt Labs Aquarium Labs Testing Kits Tropical Cold Water Pond Fish Tank Multi Test

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

BLAGDON WATER QUALITY POND DIP TEST KIT 60 TESTS Ph Ammonia Nitrite Nitate GH KH

100Pcs 16 IN 1 Drinking Water Test Strips Water Test Kit For Home Water Testing

6 in 1 Aquarium Test Kit 150 Strips Pack Aquarium Fish Tank Pond FreshWater Test

JBL ProAquaTest Lab Water Test Case

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

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

Tetra Test Kits Water Testing Sets for Fish Tanks Ponds pH KH GH NO2 NO3 O2

SALIFERT NITRATE NO3 PROFI TEST KIT MARINE REEF FISH TANK AQUARIUM

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

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

NT Labs Aquarium Test Kits PH Nitrate Hardness Ammonia Master Multi lab Tests

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

Tetra 6in1 Aquarium Test Kit Tropical PH KH GH NO2 NO3 Chlorine 25 Strips

Waterlife Multi Test Kits Aquarium/Pond pH Nitrate Ammonia Levels Fish Tank Koi

JBL PROSCAN WATER ANALYSIS FOR SMARTPHONE TEST KIT APP AQUARIUM FRESH FISH TANK

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

100x 5 In 1 Aquarium Test Strips Kit Fish Tank Pond Water Fresh PH Tester BT♐ .f

100pcs 16 IN 1 Drinking Water Test Strips For Home Well Water Quality Testing

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

SimplexHealth Nitrate & Nitrite Water Test (50 strips)

JBL PROSCAN RECHARGE WATER-ANALYSIS STRIPS FOR SMARTPHONE APP AQUARIUM FISH TANK

NT Labs Water Treatment Mini Test Kit for Fish & Aquarium Freshwater 120 Tests

Aquacadabra Freshwater Aquarium Test Kit Nitrate Nitrite pH Water Hardness

JBL Pro AquaTest Lab Freshwater Aquarium Kit Professional Fish Tank Aqua Test

JBL TestLab & TestLab Marin Aquarium Fish Tank Multi Test Kit Freshwater & Marin

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

NT Labs Test Kit Aquarium Fish Tank Tropical Freshwater Lab Testing pH & More

Aquarium Testing Kit for Freshwater Saltwater Pond Test Strips Fish Tank PH

Aquarium Test Kit Tetra Fish Tank Water 6in1 Tropical PH KH GH NO2 NO3 Chlorine

Tetra 6 In 1 Aquarium Water Test Strips | Fish

7-in-1 & Ammonia Aquarium Test Strips, Water Testing Kit for Freshwater & Marine

JBL Combi Test Set Freshwater Aquarium Fish Tank Multi Test Kit 6 Kits

Simplex Health Drinking Water All-in-One Test Kit 12 in One

Tetra Test 6 in 1 Strip 10 strips Aquarium Water Testing Kit pH KH GH NO2 NO3 CL

TETRA TEST KITS FOR AQUARIUMS FISH TANKS PH NO2 NO3 NH4 KH GH O2 WATER TESTS

JBL Easy Test 7in1 Test Strips Kit pH Nitrate Nitrite Chlorine CO2 etc Aquarium

Interpet Bioactive Tapsafe Plus Aquarium Protective Fish Tank 50, 125, 250 500ml

API Freshwater Master Test Kit Fish Aquarium Tank Water Testing

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

Tetra Nitrite Test Kit for Ponds and Aquariums

NT Labs Aquarium Water Mini Test pH Ammonia Nitrite Testing Kit 120 Tests

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

Interpet Bioactive Tap Safe 50ml 125ml 250ml 500ml Aquarium Fish Tank Chlorine

NT Labs Pond Broad Range PH Test Lab For Garden Koi Goldfish Test Kit

NT Labs PH Test Kits Pond Lab PH 6 - 9 Broad Range Testing Koi Pond Water

Drinking Water Quality Home Test Kit 12 Tests One Kit match to UK levels

JBL PROSCAN WATER ANALYSIS KIT & RECHARGE REFILL TEST SMARTPHONE AQUARIUM TANK

100x 5 In 1 Aquarium Test Strips Kit Fish Tank Pond Water Fresh PH Tester BT*_^

Best selling

NT Labs Aquarium Lab Multi-test Kit - NTLABS

API Freshwater Master Test Kit pH No2 Tropical Fish Tank

API 5 in 1 Aquarium Test Kit - 4 Pack

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

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

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

NT Labs Nitrate Test Kit Tropical Coldwater Pond Fish Tank Aquarium No3 Testing

NT Labs Aquarium Lab Ph 6-9 Test Kit 40 Tests

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

JBL ProScan Recharge Aquarium Test Strips Refill - 24 Count (2542100)

IMPORT EFN UK 77002 eSHa Quick Test Ph Testing Strips 50