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Best selling products: Best
API pH Level Fresh Water Aquarium Test Kits
Best-selling
Highest-rated products
1
Rank 1
Tetra Aquasafe Water Conditioner 5 Litre
(101)
£29.75 New
£29.75 New
£19.34 Used
£19.34 Used
2
Rank 2
Seachem Prime Water Conditioner - 325 ml
(21)
£13.20 New
£13.20 New
---- Used
No used products available
3
Rank 3
AQUARIAN Tap Water Safe Aquarium Water Conditioner - 118 ml
(59)
£3.28 New
£3.28 New
---- Used
No used products available
4
Rank 4
Seachem Prime 500ml Dechlorinator Ammonia Nitrate Remover
(166)
£21.39 New
£21.39 New
---- Used
No used products available
5
Rank 5
Tetra Aquasafe 250 ml Aquarium Water Treatment
(58)
£5.42 New
£5.42 New
---- Used
No used products available
6
Rank 6
Seachem Prime 0436 250ml Fish Tank Dechlorinator
(55)
£13.29 New
£13.29 New
---- Used
No used products available
7
Rank 7
NT Labs Aquarium Lab Multi-test Kit - NTLABS
(232)
£24.99 New
£24.99 New
---- Used
No used products available
8
Rank 8
Seachem Prime Concentrated Conditioner - 1L (437)
(3)
£37.34 New
£37.34 New
---- Used
No used products available
9
Rank 9
Seachem Prime Fresh and Saltwater Conditioner 100ml
(29)
£7.19 New
£7.19 New
---- Used
No used products available
10
Rank 10
Tetra Aquasafe Aquarium Tap Water Conditioner- 500ml
(217)
£10.90 New
£10.90 New
---- Used
No used products available
11
Rank 11
Tetra AquaSafe Plus Water Conditioner - 100 ml (T113)
(43)
£3.82 New
£3.82 New
---- Used
No used products available
12
Rank 12
API Freshwater Master Test Kit pH No2 Tropical Fish Tank
(243)
£30.95 New
£30.95 New
£21.47 Used
£21.47 Used
13
Rank 13
NT Labs Pondlab 200 Pond Water Parameter Test Kit (026322)
(116)
£25.99 New
£25.99 New
---- Used
No used products available
14
Rank 14
Interpet Bioactive Tapsafe - 500ml
(169)
£4.57 New
£4.57 New
---- Used
No used products available
15
Rank 15
Seachem Prime Concentrated 4L Aquarium Water Conditioner
(5)
£129.69 New
£129.69 New
---- Used
No used products available
16
Rank 16
Seachem Purigen Ultimate Filtration for Freshwater Aquariums - 100ml
(15)
£13.15 New
£13.15 New
---- Used
No used products available
17
Rank 17
SimplexHealth Total Hardness Water Test Strips - Pack of 10
(83)
£3.99 New
£3.99 New
---- Used
No used products available
18
Rank 18
Salifert MG Profi Test Kit Magnesium 50 Tests Marine Aquarium Fish Tank
(31)
£5.42 New
£5.42 New
---- Used
No used products available
19
Rank 19
API 5 in 1 Aquarium Test Kit - 4 Pack
(46)
£4.45 New
£4.45 New
---- Used
No used products available
20
Rank 20
API GH & KH TEST KIT Freshwater Aquarium Water Test Kit
(7)
£11.49 New
£11.49 New
---- Used
No used products available
21
Rank 21
Evolution Aqua Pure Aquarium 50 Clear Gel Balls (21900)
(285)
£9.90 New
£9.90 New
---- Used
No used products available
22
Rank 22
API LR8600 Ammonia Test Kit for Aquarium - Pack of 130 Tests
(56)
£7.58 New
£7.58 New
---- Used
No used products available
23
Rank 23
Vetark Fluke-Solve Aquarium Treatment - 100g
(31)
£44.30 New
£44.30 New
---- Used
No used products available
24
Rank 24
Aquarium Systems Instant Ocean Salt 4kg/120L
(13)
£18.99 New
£18.99 New
---- Used
No used products available
25
Rank 25
API ACCU-CLEAR Aquarium Cloudy Water Clarifier - 118ml
(72)
£6.49 New
£6.49 New
---- Used
No used products available
26
Rank 26
Interpet Bioactive Tapsafe Aquarium Water Dechlorinator - 250ml (0557)
(34)
£9.95 New
£9.95 New
---- Used
No used products available
27
Rank 27
API 55898 5 in 1 Aquarium Test Strips - Pack of 25
(73)
£8.19 New
£8.19 New
---- Used
No used products available
28
Rank 28
API LR1800 Nitrate Aquarium Fish Tank Fresh and Salt Water Test Kit - 90 Tests
(33)
£11.90 New
£11.90 New
---- Used
No used products available
29
Rank 29
Tetra Crystal Water Treatment - 250ml
(28)
£10.42 New
£10.42 New
---- Used
No used products available
30
Rank 30
API STRESS COAT Aquarium Water Conditioner - 473ml
(45)
£13.39 New
£13.39 New
---- Used
No used products available
31
Rank 31
API Melafix - 473ml
(20)
£10.78 New
£10.78 New
---- Used
No used products available
32
Rank 32
Salifert 22040 Test Kit
(9)
£13.39 New
£13.39 New
£8.00 Used
£8.00 Used
33
Rank 33
Interpet Anti Fungus and Finrot 100ml Aquarium Fish Treatment
(19)
£9.70 New
£9.70 New
---- Used
No used products available
34
Rank 34
Fluval Aquaplus 21700g Water Conditioner - A8345A2
(26)
£21.79 New
£21.79 New
---- Used
No used products available
35
Rank 35
Salifert KH/Alkalinity Test Kit
(13)
£10.65 New
£10.65 New
£5.43 Used
£5.43 Used
36
Rank 36
EasyLife AlgExit 0.25L Fish Tank Algae Removal - ALG0250
(45)
£8.01 New
£8.01 New
---- Used
No used products available
37
Rank 37
Easy Life ProFito 500ml Complete Aquatic Plant Fertilizer Aquarium Fish Tank X2
(62)
£9.28 New
£9.28 New
---- Used
No used products available
38
Rank 38
API LEAF ZONE Aquarium Plant Fertiliser - 473ml (576J)
(32)
£13.29 New
£13.29 New
---- Used
No used products available
39
Rank 39
Seachem Flourish Tabs for Planted Aquarium - 40 Tabs
(7)
£27.94 New
£27.94 New
---- Used
No used products available
40
Rank 40
API Prevent Aquarium Algae Control Solution - 237ml
(41)
£9.29 New
£9.29 New
£8.64 Used
£8.64 Used
41
Rank 41
Seachem Stability Tank Stabilization System - 500ml
(28)
£21.20 New
£21.20 New
---- Used
No used products available
42
Rank 42
Tropic Marin All for Reef Minerals 1L
(1)
£27.28 New
£27.28 New
---- Used
No used products available
43
Rank 43
Colombo Testlab Pond Test Kit
(38)
£39.89 New
£39.89 New
---- Used
No used products available
44
Rank 44
(2 Pack) API Nitrite NO2 Test Kit 180 count Freshwater & Saltwater Aquariums
(13)
£11.99 New
£11.99 New
---- Used
No used products available
45
Rank 45
Tetra Crystal Water Treatment 100ml (551346)
(51)
£8.84 New
£8.84 New
---- Used
No used products available
46
Rank 46
Easy Life EasyCarbo 1000 Ml 1 LT Carbon Source Fertilizer for Aquarium Plants
(56)
£15.82 New
£15.82 New
---- Used
No used products available
47
Rank 47
Fluval Aqua Plus Water Conditioner for Aquariums - 250ml
(78)
£7.82 New
£7.82 New
---- Used
No used products available
48
Rank 48
Tetra AlguMin 100ml Dual Action Algae Treatment for Aquariums
(15)
£7.49 New
£7.49 New
---- Used
No used products available
49
Rank 49
eSHa PROTALON 707 20ml Anti Algae Treatment Plant Friendly
(42)
£8.99 New
£8.99 New
---- Used
No used products available
50
Rank 50
Seachem Purigen 25ml in Small Filter Bag Postage
£245.95 New
£245.95 New
---- Used
No used products available
51
Rank 51
Fluval A8344A1 Water Conditioner for Aquariums 500ml
(54)
£12.49 New
£12.49 New
---- Used
No used products available
52
Rank 52
Fluval Cycle Biological Enhancer - 375ml
(41)
£10.49 New
£10.49 New
---- Used
No used products available
53
Rank 53
eSHa GASTROPEX 10ml Aquarium Fish Tank Snail Killer Treatment
(361)
£8.19 New
£8.19 New
---- Used
No used products available
54
Rank 54
Seachem Clarity Water Conditioner - 250ml
(19)
£11.95 New
£11.95 New
---- Used
No used products available
55
Rank 55
API KH Test Kit Carbonate Hardness Fish Tank Aquarium Tropical Coldwater & Pond
(9)
£8.49 New
£8.49 New
---- Used
No used products available
56
Rank 56
API Phosphate Test Kit - Tropical Coldwater and Marines Fish Tank Aquarium
(27)
£11.90 New
£11.90 New
£10.78 Used
£10.78 Used
57
Rank 57
EasyLife EasyCarbo Aquarium Liquid Carbon Fertilizer 500ml (EC1002)
(65)
£10.45 New
£10.45 New
---- Used
No used products available
58
Rank 58
API Ammonia Test Strip - Pack of 25
(5)
£10.40 New
£10.40 New
---- Used
No used products available
59
Rank 59
Tétra 6 in 1 Tropical Ph KH GH No2 No3 Cl3 Aquarium Water Test Kit
(25)
£5.49 New
£5.49 New
---- Used
No used products available
60
Rank 60
NT Labs Aquarium Water pH Test Kit - 120 Count
(68)
£13.95 New
£13.95 New
---- Used
No used products available
61
Rank 61
Seachem 67104530 Flourish Excel - 500ml
(43)
£17.54 New
£17.54 New
---- Used
No used products available
62
Rank 62
Interpet Anti Hair Algae Aquarium Water Treatments 125 Ml Pr200 011
(24)
£5.35 New
£5.35 New
---- Used
No used products available
63
Rank 63
API Stress Coat Aquarium Water Conditioner 30 ml
(39)
£3.19 New
£3.19 New
---- Used
No used products available
64
Rank 64
Seachem Flourish Tabs Gravel Bed Supplement - 10 Tablets
(8)
£11.85 New
£11.85 New
---- Used
No used products available
65
Rank 65
API Saltwater Master Test Kit
(69)
£24.49 New
£24.49 New
---- Used
No used products available
66
Rank 66
Seachem Alert Combo One Year Ammonia and Freshwater pH Monitor Pack (28658)
(12)
£16.70 New
£16.70 New
---- Used
No used products available
67
Rank 67
Seachem Ammonia Alert for Freshwater and Marine Water
(98)
£10.85 New
£10.85 New
---- Used
No used products available
68
Rank 68
Interpet Aquarium 125 ml Green Away - 55114
(43)
£5.49 New
£5.49 New
---- Used
No used products available
69
Rank 69
Tropic Marin Pro Reef Sea Salt 10kg/300L Bucket
(3)
£51.95 New
£51.95 New
---- Used
No used products available
70
Rank 70
Tetra Crystal Water Clarifier - 250ml
(62)
£12.26 New
£12.26 New
---- Used
No used products available
71
Rank 71
Seachem 250g Safe Water Conditioner - White
(22)
£17.54 New
£17.54 New
---- Used
No used products available
72
Rank 72
Tetra Pond Test Strip 6 in 1 (T6912)
(118)
£12.95 New
£12.95 New
---- Used
No used products available
73
Rank 73
Tetra Aqua Easy Balance T164 100ml
(12)
£5.68 New
£5.68 New
---- Used
No used products available
74
Rank 74
API Stress Zyme Water Treatment - 437ml
(23)
£9.99 New
£9.99 New
---- Used
No used products available
75
Rank 75
Fluval Aqua Plus Water Conditioner - 375ml
(50)
£8.99 New
£8.99 New
---- Used
No used products available
76
Rank 76
Fluval Cycle Biological Enhancer + Aquaplus Water Conditioner Water Treatment Pack - 2 x 250ml
(13)
£8.99 New
£8.99 New
---- Used
No used products available
77
Rank 77
eSHa Optima 20ml Fish Health Boost Aquarium Water Treatment
(25)
£6.99 New
£6.99 New
---- Used
No used products available
78
Rank 78
Fluval Biological Enhancer For Aquariums - 2L
(7)
£39.95 New
£39.95 New
---- Used
No used products available
79
Rank 79
NT Labs Anti-White Spot and Fungus Water Additive
(21)
£7.99 New
£7.99 New
---- Used
No used products available
80
Rank 80
Waterlife Myxazin Fin Rot & Bacteria 500ml 600g
(14)
£18.99 New
£18.99 New
---- Used
No used products available
81
Rank 81
Fluval Aquaplus 2L Water Conditioner
(119)
£21.99 New
£21.99 New
---- Used
No used products available
82
Rank 82
API Aquarium Tonic Salt 454g Tropical Fish Medication
(21)
£6.49 New
£6.49 New
---- Used
No used products available
83
Rank 83
- Interpet Quick Clear Aquarium Treatment 125 Ml 0755349551095
(20)
£6.57 New
£6.57 New
---- Used
No used products available
84
Rank 84
Tetra Safe Start Water Conditioner 100ml
(6)
£8.49 New
£8.49 New
---- Used
No used products available
85
Rank 85
API Prevent Algae Liquid Aquarium Water Treatment 118ml
(53)
£7.15 New
£7.15 New
---- Used
No used products available
86
Rank 86
Tetra Nitrate Minus Remover NitrateMinus No3 Prevent Algae 100ml
(7)
£6.44 New
£6.44 New
---- Used
No used products available
87
Rank 87
All Pond Solutions Aquarium Rescue Snail Control 100 Ml
(16)
£10.99 New
£10.99 New
---- Used
No used products available
88
Rank 88
API Leaf Zone Aquarium Plant Fertiliser - 237ml
(11)
£10.45 New
£10.45 New
---- Used
No used products available
89
Rank 89
Fluval A8351A1 Water Treatment - 500 ml
(41)
£16.49 New
£16.49 New
---- Used
No used products available
90
Rank 90
Tetra Test 6in1 Strips Aquarium to Test 6 Essential Water Quality Parameters - Pack of 25
(144)
£6.99 New
£6.99 New
---- Used
No used products available
91
Rank 91
Waterlife Protozin White Spot Fungus Pro 500ml 600g
(17)
£14.85 New
£14.85 New
---- Used
No used products available
92
Rank 92
- Fluval Quick Clear 120ml 0015561183666
(24)
£8.99 New
£8.99 New
---- Used
No used products available
93
Rank 93
Interpet Quick Safe Start 50ml for Coldwater & Tropical Aquariums 0755349551026
(20)
£2.99 New
£2.99 New
---- Used
No used products available
94
Rank 94
API Quick Start Freshwater and Saltwater Aquarium Nitrifying Bacteria - 473 ml
(6)
£12.99 New
£12.99 New
---- Used
No used products available
95
Rank 95
BN eSHa Minaroll Trace Elements Vitamins and Minerals 20ml
(21)
£6.99 New
£6.99 New
---- Used
No used products available
96
Rank 96
JBL ProAqua Test Combiset Kit W Nh4 Freshwater Aquarium Water Lab Case Combi Set
(4)
£39.90 New
£39.90 New
---- Used
No used products available
97
Rank 97
Interpet 573 Aquarium Swimbladder Treatment - Orange
(23)
£7.95 New
£7.95 New
---- Used
No used products available
98
Rank 98
Acid Buffer 300 Grams (10.6 oz) By Seachem
(1)
£12.90 New
£12.90 New
---- Used
No used products available
99
Rank 99
Seachem Ph Alert & Monitor for Freshwater Aquariums
(6)
£8.99 New
£8.99 New
---- Used
No used products available
100
Rank 100
Api 473ml Tap Water Conditioner
(20)
£11.42 New
£11.42 New
---- Used
No used products available
