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Best selling products: Best
API Aquarium Fresh Water 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 500ml Dechlorinator Ammonia Nitrate Remover
(166)
£21.39 New
£21.39 New
---- Used
No used products available
3
Rank 3
AQUARIAN Tap Water Safe Aquarium Water Conditioner - 118 ml
(60)
£3.35 New
£3.35 New
---- Used
No used products available
4
Rank 4
Seachem Prime Water Conditioner - 325 ml
(21)
£13.80 New
£13.80 New
---- Used
No used products available
5
Rank 5
NT Labs Aquarium Lab Multi-test Kit - NTLABS
(233)
£24.99 New
£24.99 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
Seachem Prime Fresh and Saltwater Conditioner 100ml
(29)
£7.19 New
£7.19 New
---- Used
No used products available
8
Rank 8
Tetra AquaSafe Plus Water Conditioner - 100 ml (T113)
(43)
£3.99 New
£3.99 New
---- Used
No used products available
9
Rank 9
Seachem Prime Concentrated 4L Aquarium Water Conditioner
(5)
£129.65 New
£129.65 New
---- Used
No used products available
10
Rank 10
Seachem Prime Concentrated Conditioner - 1L (437)
(3)
£37.34 New
£37.34 New
---- Used
No used products available
11
Rank 11
API Freshwater Master Test Kit pH No2 Tropical Fish Tank
(244)
£29.99 New
£29.99 New
£21.47 Used
£21.47 Used
12
Rank 12
Aquarium Systems Instant Ocean Salt 4kg/120L
(13)
£18.99 New
£18.99 New
---- Used
No used products available
13
Rank 13
API STRESS COAT Aquarium Water Conditioner - 473ml
(45)
£13.39 New
£13.39 New
---- Used
No used products available
14
Rank 14
Vetark Fluke-Solve Aquarium Treatment - 100g
(31)
£44.30 New
£44.30 New
---- Used
No used products available
15
Rank 15
Seachem Purigen Ultimate Filtration for Freshwater Aquariums - 100ml
(15)
£13.15 New
£13.15 New
---- Used
No used products available
16
Rank 16
Evolution Aqua Pure Aquarium 50 Clear Gel Balls (21900)
(287)
£9.90 New
£9.90 New
---- Used
No used products available
17
Rank 17
SimplexHealth Total Hardness Water Test Strips - Pack of 10
(85)
£3.99 New
£3.99 New
---- Used
No used products available
18
Rank 18
API Prevent Aquarium Algae Control Solution - 237ml
(41)
£9.29 New
£9.29 New
£8.64 Used
£8.64 Used
19
Rank 19
Tetra Aquasafe 5l 5 Litre Fish Tank Tap Safe Water Conditioner Declorinator
(42)
£29.99 New
£29.99 New
---- Used
No used products available
20
Rank 20
API GH & KH TEST KIT Freshwater Aquarium Water Test Kit
(8)
£11.49 New
£11.49 New
---- Used
No used products available
21
Rank 21
API LEAF ZONE Aquarium Plant Fertiliser - 473ml (576J)
(32)
£14.39 New
£14.39 New
---- Used
No used products available
22
Rank 22
EasyLife AlgExit 500ml Algae Control
(44)
£10.72 New
£10.72 New
---- Used
No used products available
23
Rank 23
API 5 in 1 Aquarium Test Kit - 4 Pack
(47)
£4.45 New
£4.45 New
---- Used
No used products available
24
Rank 24
Salifert 22040 Test Kit
(9)
£13.39 New
£13.39 New
---- Used
No used products available
25
Rank 25
API 55898 5 in 1 Aquarium Test Strips - Pack of 25
(74)
£5.69 New
£5.69 New
---- Used
No used products available
26
Rank 26
Salifert KH/Alkalinity Test Kit
(13)
£10.65 New
£10.65 New
£5.43 Used
£5.43 Used
27
Rank 27
API ACCU-CLEAR Aquarium Cloudy Water Clarifier - 118ml
(73)
£7.29 New
£7.29 New
---- Used
No used products available
28
Rank 28
Fluval Aquaplus 21700g Water Conditioner - A8345A2
(26)
£21.79 New
£21.79 New
---- Used
No used products available
29
Rank 29
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
30
Rank 30
Interpet Bioactive Tapsafe Aquarium Water Dechlorinator - 250ml (0557)
(34)
£9.95 New
£9.95 New
---- Used
No used products available
31
Rank 31
API LR1800 Nitrate Aquarium Fish Tank Fresh and Salt Water Test Kit - 90 Tests
(33)
£11.99 New
£11.99 New
---- Used
No used products available
32
Rank 32
Seachem Stability Tank Stabilization System - 500ml
(28)
£16.13 New
£16.13 New
---- Used
No used products available
33
Rank 33
Seachem Purigen 25ml in Small Filter Bag Postage
£245.95 New
£245.95 New
---- Used
No used products available
34
Rank 34
(2 Pack) API Nitrite NO2 Test Kit 180 count Freshwater & Saltwater Aquariums
(13)
£11.99 New
£11.99 New
---- Used
No used products available
35
Rank 35
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
36
Rank 36
NT Labs Pondlab 200 Pond Water Parameter Test Kit (026322)
(117)
£21.48 New
£21.48 New
---- Used
No used products available
37
Rank 37
API Melafix - 473ml
(20)
£10.78 New
£10.78 New
---- Used
No used products available
38
Rank 38
API Aqua Essential Water Conditioner Detoxify Ammonia Nitrite Nitrate 473ML 16OZ
(2)
£11.89 New
£11.89 New
---- Used
No used products available
39
Rank 39
Interpet Aquarium Treatment Anti White Spot 100ml 0755349505661
(18)
£6.76 New
£6.76 New
---- Used
No used products available
40
Rank 40
Fluval A8344A1 Water Conditioner for Aquariums 500ml
(54)
£12.49 New
£12.49 New
---- Used
No used products available
41
Rank 41
Fluval A8355 8.4 fl oz Biological Cleaner for Aquariums
(27)
£9.49 New
£9.49 New
---- Used
No used products available
42
Rank 42
API LR8600 Ammonia Test Kit for Aquarium - Pack of 130 Tests
(56)
£7.58 New
£7.58 New
---- Used
No used products available
43
Rank 43
Easy Life ProFito 500ml Complete Aquatic Plant Fertilizer Aquarium Fish Tank X2
(62)
£9.28 New
£9.28 New
---- Used
No used products available
44
Rank 44
API Quick Start Freshwater and Saltwater Aquarium Nitrifying Bacteria - 473 ml
(6)
£12.99 New
£12.99 New
---- Used
No used products available
45
Rank 45
Seachem Ammonia Alert for Freshwater and Marine Water
(98)
£10.85 New
£10.85 New
---- Used
No used products available
46
Rank 46
Tetra Easy Balance Water Conditioner - 500ml
(28)
£14.39 New
£14.39 New
---- Used
No used products available
47
Rank 47
Seachem Flourish Excel Organic Nutrition 4 Litre
(1)
£97.95 New
£97.95 New
---- Used
No used products available
48
Rank 48
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
49
Rank 49
Waterlife Myxazin Fin Rot & Bacteria 500ml 600g
(14)
£18.99 New
£18.99 New
---- Used
No used products available
50
Rank 50
API KH Test Kit Carbonate Hardness Fish Tank Aquarium Tropical Coldwater & Pond
(9)
£8.49 New
£8.49 New
---- Used
No used products available
51
Rank 51
API 164M Pond Care Master Test Kit
(72)
£24.79 New
£24.79 New
---- Used
No used products available
52
Rank 52
Tetra AlguMin Algae Control Treatment - 250ml
(9)
£8.60 New
£8.60 New
---- Used
No used products available
53
Rank 53
Fluval Cycle Biological Enhancer - 375ml
(41)
£10.49 New
£10.49 New
---- Used
No used products available
54
Rank 54
Fluval Aqua Plus Water Conditioner for Aquariums - 250ml
(78)
£7.82 New
£7.82 New
---- Used
No used products available
55
Rank 55
Tetra Aqua Easy Balance T164 100ml
(12)
£6.22 New
£6.22 New
---- Used
No used products available
56
Rank 56
Fluval Aqua Plus Water Conditioner - 375ml
(51)
£8.99 New
£8.99 New
---- Used
No used products available
57
Rank 57
API Saltwater Master Test Kit
(69)
£24.49 New
£24.49 New
---- Used
No used products available
58
Rank 58
Interpet Anti Hair Algae Aquarium Water Treatments 125 Ml Pr200 011
(24)
£5.51 New
£5.51 New
---- Used
No used products available
59
Rank 59
EasyLife AlgExit 0.25L Fish Tank Algae Removal - ALG0250
(45)
£8.01 New
£8.01 New
---- Used
No used products available
60
Rank 60
Tetra Crystal Water Clarifier - 250ml
(62)
£12.26 New
£12.26 New
---- Used
No used products available
61
Rank 61
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
62
Rank 62
API Calcium Ca2 Saltwater Only Aquarium Test Kit
(7)
£11.65 New
£11.65 New
---- Used
No used products available
63
Rank 63
API Ammonia Test Strip - Pack of 25
(5)
£10.40 New
£10.40 New
---- Used
No used products available
64
Rank 64
Seachem Alert Combo One Year Ammonia and Freshwater pH Monitor Pack (28658)
(12)
£16.70 New
£16.70 New
---- Used
No used products available
65
Rank 65
Tetra AquaSafe Fish Tank Water Conditioner - 50ml
(82)
£4.65 New
£4.65 New
---- Used
No used products available
66
Rank 66
Seachem SC-120 Stability Fish Tank Treatment - White
(14)
£13.90 New
£13.90 New
---- Used
No used products available
67
Rank 67
Seachem 250g Safe Water Conditioner - White
(22)
£17.54 New
£17.54 New
---- Used
No used products available
68
Rank 68
Seachem Flourish Excel Plant Fertilizer - 250ml
(15)
£10.94 New
£10.94 New
---- Used
No used products available
69
Rank 69
API Marine Reef Master Aquarium Test Kit Ca2 KH Po4 No3
(7)
£27.49 New
£27.49 New
---- Used
No used products available
70
Rank 70
Interpet 573 Aquarium Swimbladder Treatment - Orange
(23)
£7.95 New
£7.95 New
---- Used
No used products available
71
Rank 71
Tetra AlguMin 100ml Dual Action Algae Treatment for Aquariums
(15)
£7.49 New
£7.49 New
---- Used
No used products available
72
Rank 72
Tropic Marin All for Reef Minerals 1L
(1)
£27.28 New
£27.28 New
---- Used
No used products available
73
Rank 73
Seachem Safe 1kg Dechlorinator Tap Safe Water Treatment Treats 960 000l
(2)
£47.07 New
£47.07 New
---- Used
No used products available
74
Rank 74
Tetra Pond Test Strip 6 in 1 (T6912)
(118)
£12.95 New
£12.95 New
---- Used
No used products available
75
Rank 75
Tetra Crystal Water Treatment 100ml (551346)
(51)
£8.84 New
£8.84 New
---- Used
No used products available
76
Rank 76
Interpet Sludge Buster 50ml
(4)
£2.99 New
£2.99 New
---- Used
No used products available
77
Rank 77
Interpet Quick Safe Start 50ml for Coldwater & Tropical Aquariums 0755349551026
(20)
£2.99 New
£2.99 New
---- Used
No used products available
78
Rank 78
Interpet Treat Sludge Buster 250ml - 751298
(12)
£8.99 New
£8.99 New
---- Used
No used products available
79
Rank 79
Seachem Stability 1l Fish Tank Treatment
(2)
£32.60 New
£32.60 New
---- Used
No used products available
80
Rank 80
Tropic Marin Pro Reef Sea Salt 10kg/300L Bucket
(3)
£51.95 New
£51.95 New
---- Used
No used products available
81
Rank 81
NT Labs Anti-White Spot and Fungus Water Additive
(21)
£7.99 New
£7.99 New
---- Used
No used products available
82
Rank 82
Interpet Aquarium Disease Away Treatment 100ml
(16)
£9.99 New
£9.99 New
---- Used
No used products available
83
Rank 83
Seachem Alert pH and Ammonia for Freshwater
(68)
£14.90 New
£14.90 New
---- Used
No used products available
84
Rank 84
eSHa PROTALON 707 20ml Anti Algae Treatment Plant Friendly
(42)
£8.99 New
£8.99 New
---- Used
No used products available
85
Rank 85
Evolution Aqua Pure Aquarium 25-Pack Polymer Balls
(23)
£7.89 New
£7.89 New
---- Used
No used products available
86
Rank 86
API Prevent Algae Liquid Aquarium Water Treatment 118ml
(53)
£7.15 New
£7.15 New
---- Used
No used products available
87
Rank 87
NT Labs Aquarium Treatment Swimbladder 100ml 0733809004817
(11)
£8.99 New
£8.99 New
---- Used
No used products available
88
Rank 88
API Leaf Zone Aquarium Plant Fertiliser - 237ml
(11)
£10.66 New
£10.66 New
---- Used
No used products available
89
Rank 89
- Interpet Quick Clear Aquarium Treatment 125 Ml 0755349551095
(20)
£6.57 New
£6.57 New
---- Used
No used products available
90
Rank 90
API Melafix Professional Aquarium Fish Tank Treatment 1.9ltr
(2)
£54.49 New
£54.49 New
---- Used
No used products available
91
Rank 91
Seachem Laboratories Flourish Excel Plant Supplement 1 Each/1.7 Oz By Seachem
£6.99 New
£6.99 New
---- Used
No used products available
92
Rank 92
Easy-Life EasyCarbo 5L
(3)
£60.99 New
£60.99 New
---- Used
No used products available
93
Rank 93
EasyLife Blue Exit 500ml Aquarium Fish Treatment
(15)
£10.89 New
£10.89 New
---- Used
No used products available
94
Rank 94
Seachem PhosGuard Phosphate and Silicate Remover 4 Litre
(1)
£107.95 New
£107.95 New
---- Used
No used products available
95
Rank 95
Tetra Nitrate Minus Remover NitrateMinus No3 Prevent Algae 100ml
(7)
£6.44 New
£6.44 New
---- Used
No used products available
96
Rank 96
Waterlife Myxazin 100ml Bactericide Fish Treatment Fin Rot Aquarium
(7)
£8.94 New
£8.94 New
---- Used
No used products available
97
Rank 97
API Pimafix Antifungal Freshwater and Saltwater Fish Remedy 237 Ml Bottle
(25)
£13.99 New
£13.99 New
---- Used
No used products available
98
Rank 98
Colombo Testlab Pond Test Kit
(39)
£39.95 New
£39.95 New
---- Used
No used products available
99
Rank 99
Api 473ml Tap Water Conditioner
(20)
£14.21 New
£14.21 New
---- Used
No used products available
100
Rank 100
Interpet Aquarium 125 ml Green Away - 55114
(43)
£6.15 New
£6.15 New
---- Used
No used products available
