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Fish and Aquarium GH Water Tests and Treatment
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Fish and Aquarium Algae Water Tests and Treatment
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Aquarium Water Treatment
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Best selling
See all
NT Labs Aquarium Lab Multi-test Kit - NTLABS
(232)
£24.99 New
NT Labs Pondlab 200 Pond Water Parameter Test Kit (026322)
(116)
£25.99 New
API GH & KH TEST KIT Freshwater Aquarium Water Test Kit
(7)
£11.49 New
API 55898 5 in 1 Aquarium Test Strips - Pack of 25
(73)
£4.50 New
API 5 in 1 Aquarium Test Kit - 4 Pack
(46)
£4.45 New
Salifert MG Profi Test Kit Magnesium 50 Tests Marine Aquarium Fish Tank
(31)
£11.79 New
£9.56 Used
Tetra Test 6in1 Strips Aquarium to Test 6 Essential Water Quality Parameters - Pack of 25
(144)
£6.99 New
NT Labs Aquarium Lab Ph 6-9 Test Kit 40 Tests
(3)
£8.25 New
Top-rated
See all
NT Labs Aquarium Lab Multi-test Kit - NTLABS
(232)
97%
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
NT Labs Pondlab 200 Pond Water Parameter Test Kit (026322)
(116)
98%
agree - Would recommend
£25.99 New
API 55898 5 in 1 Aquarium Test Strips - Pack of 25
(73)
100%
agree - Would recommend
£4.50 New
Colombo Testlab Pond Test Kit
(38)
88%
agree - Would recommend
£39.95 New
JBL ProScan Recharge Aquarium Test Strips Refill - 24 Count (2542100)
(31)
96%
agree - Would recommend
£14.75 New
Tetra Easy Balance Water Conditioner - 500ml
(28)
100%
agree - Would recommend
£14.39 New
Tétra Test O2 Aquarium Oxygen Testing Kit (Pack of 30)
(15)
100%
agree - Would recommend
£14.25 New
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Fish and Aquarium GH Water Tests and Treatment
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820 results
Sort: Best match
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Filter
Test/Treatment Parameter: GH
- Selected
Test/Treatment Parameter
GH
Algae
Alkalinity/KH
Ammonia
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Dennerle
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sera
Tétra
Unbranded
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Not specified
Type
Aquarium Cycling Starter
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Test Kit
Water Additive
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Not specified
Tank Capacity
200 gal.
Not specified
Condition
New
New other (see details)
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Price
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£11 to £15
Over £15
All Filters
XL Indian Almond Leaves for Aquaria Catappa Betta Shrimp Pleco Blackwater Tannin
Brand new
·
Unbranded
£3.99
to
£159.99
(£159.99/Unit)
Free postage
Botanical Box - Leaves/Pods for Aquarium Betta Shrimp Pleco Blackwater Tannin
Brand new
·
Unbranded
£8.99
to
£89.99
(£59.99/Unit)
Free postage
Click & Collect
AQUAVERITY 7 IN 1 POND TEST STRIPS QUICK & EASY TO USE IN GARDEN PONDS 50 STRIPS
Brand new
£9.95
Free postage
Click & Collect
156 sold
Seachem Equilibrium Planted Aquarium Mineral Balance GH Supplement Additive
Brand new
·
Seachem
£12.49
to
£17.99
Free postage
Click & Collect
27 sold
NT LABS POND LAB 200 MULTI TEST KIT MASTER PONDLAB WATER SET PH GH KH NO2 NO4
Brand new
·
NT Labs
(116)
£25.99
Free postage
Click & Collect
2,807 sold
NT LABS AQUARIUM LAB MULTI-TEST MASTER KIT WATER TESTING TROPICAL FISH TANK
Brand new
(232)
£25.99
Free postage
Click & Collect
7,304 sold
SALIFERT PROFI TEST KIT RANGE MARINE REEF SALTWATER CORAL AQUARIUM FISH TANK
Brand new
·
Salifert
(31)
£10.50
to
£34.95
Free postage
Click & Collect
112 sold
NT Labs Test Reagent Bottle Replacement Spare pH Nitrite GH Ammonia Fish Tank
Brand new
£3.19
to
£29.99
Free postage
344 sold
API 5 in 1 AQUARIUM WATER TEST KIT DIP 25 STRIPS FRESHWATER SALTWATER FISH TANK
Brand new
·
API
(46)
£5.99
to
£12.99
Free postage
Click & Collect
369 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
(8)
£11.49
(£11.49/Unit)
Free postage
Click & Collect
475 sold
API Test Kits Ammonia Nitrate Nitrite pH KH GH Phosphate Freshwater Marine
Brand new
·
API
(56)
£8.49
to
£19.99
Free postage
Click & Collect
220 sold
Envii Pond Test Strips - Quick & Easy Test Kit Contains 25 Test Strips
Brand new
(10)
£11.95
Free postage
Click & Collect
728 sold
Colombo AquaTest Test Lab Professional Pond/Fresh/Marine Test Kit Advanced Fish
Brand new
·
Colombo
(38)
£39.95
Free postage
Click & Collect
431 sold
Fluid Filter Medium 1000ml - Aquarium Fish Tank Conditioner - Tap Safe Treatment
Brand new
£14.99
Free postage
Click & Collect
59 sold
Fluid Filter Medium 5000ml - Aquarium Fish Tank Conditioner - Tap Safe Treatment
Brand new
£34.99
Free postage
Click & Collect
38 sold
Envii Aquarium Equaliser pH Up Down Buffer for Aquariums Fish Tank Water GH KH
Brand new
£9.95
Free postage
Click & Collect
169 sold
TETRA EASY BALANCE 100ml 250ml 500ml pH KH PHOSPHATE WATER BALANCE AQUARIUM
Brand new
·
Tétra
(28)
£7.75
to
£15.75
Free postage
Click & Collect
1,071 sold
TETRA POND STRIPS 6 IN 1 QUICK TEST KIT KOI FISH WATER QUALITY QUICK TETRAPOND
Brand new
·
Tétra
(118)
£12.99
Free postage
Click & Collect
2,272 sold
API Stress Coat Water Conditioner Tap Safe Fish Tank Aquarium Dechlorinator
Brand new
·
API
(13)
£9.99
to
£36.99
Free postage
Click & Collect
61 sold
API Test Strips 5 in 1 pH KH GH Nitrate Nitrite Aquarium Fish Tank Water Quality
Brand new
·
API
(4)
£11.99
to
£26.99
Free postage
Click & Collect
24 sold
NT Labs Multi Test Lab For Aquarium NH4 NO2 NO3 PH GH KH Fish Tank Test Kit
Brand new
(232)
£24.99
Free postage
Click & Collect
142 sold
SEACHEM NEUTRAL REGULATOR pH 7.0 FROM HIGH/LOW ACID ALKALI AQUARIUM FISH TANK
Brand new
·
Seachem
(2)
£8.20
to
£19.50
Free postage
Click & Collect
81 sold
API 5-IN-1 Test Strips Freshwater and Saltwater Aquarium Test Strips Pack of 100
Fast & Free Delivery On All Items | Multibuy Savings
Brand new
·
API
(4)
£17.89
(£17.89/Unit)
Free postage
Click & Collect
442 sold
SEACHEM EQUILIBRIUM RE MINERAL BALANCE GH NO SODIUM CHLORIDE AQUARIUM FISH TANK
Brand new
·
Seachem
(3)
£11.99
to
£17.45
Free postage
Click & Collect
403 sold
API ACCU-CLEAR CLEARS CLOUDY WATER TROPICAL FRESHWATER AQUARIUM FISH TANK
Brand new
·
API
(10)
£6.95
to
£9.75
Free postage
Click & Collect
154 sold
JBL CombiSet Marine Aquarium Test Kit- pH, KH, NH4, NO2, NO3, PO4 Combi Set
Brand new
·
JBL
(4)
£39.95
Free postage
Click & Collect
270 sold
API GH & KH WATER TEST KIT FISH TANK TROPICAL POND GENERAL CARBONATE HARDNESS
Brand new
·
API
(8)
£11.99
Free postage
Click & Collect
1,439 sold
TMC Salifert Profi Test Kit Saltwater Marine Reef Water Testing Coral Fish Tank
Brand new
·
Salifert
(9)
£10.09
to
£13.40
Free postage
Click & Collect
59 sold
5 in1 Aquarium Water Test Kit, Fish Tank Tester Strips (50-200 Strips) Bulk UK
Cheapest Bulk Option - UK Based - Free P&P RM48
Brand new
£5.85
to
£12.95
Free postage
Click & Collect
22 sold
COLOMBO AQUATEST TEST LAB PROFESSIONAL POND FRESH SEA WATER MARINE TEST KIT FISH
Brand new
·
Colombo
(38)
£39.89
Free postage
Click & Collect
61 sold
JBL CombiSet Test Kit For Freshwater Aquarium- pH, KH, CO2, NO2, NO3 + NH4
Brand new
·
JBL
(4)
£39.95
Free postage
Click & Collect
204 sold
API MASTER TEST KITS FRESH WATER MARINE REEF SALTWATER STRIPS WATER FISH TANK
Brand new
·
API
(73)
£12.99
to
£32.99
Free postage
Click & Collect
296 sold
Colombo Quicktest 6-in-1 Pond Test Strips x50 Kit Freshwater Aquarium Fish Tank
Brand new
·
Colombo
(5)
£14.45
Free postage
Click & Collect
Only 3 left
Seachem Safe Dechlorinater Ammonia Remover Nitrite Nitrate Concentrate powder
Brand new
·
Seachem
(3)
£9.75
to
£70.29
Free postage
Click & Collect
59 sold
NT Labs Aquarium Lab Multi-Test Master Kit Water Testing Tropical Fish Tank
Brand new
(232)
£27.99
Was:
£36.99
was - £36.99
Free postage
Click & Collect
113 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
Envii Pond Equaliser – Pond pH Buffer Instantly Balances, and Stabilises pH,
Brand new
(11)
£20.88
Free postage
Est. delivery
Thu, Aug 14
Only 1 left.
10" WATER DECLORINATOR PURIFIER DECHLORINATOR UNIT REFILL
Brand new
£15.95
Free postage
Click & Collect
80 sold
Fluid Filter Medium 2500ml - Aquarium Fish Tank Conditioner - Tap Safe Treatment
Brand new
£24.99
Free postage
Click & Collect
22 watching
Fertiliser Aquarium Plant Liquid Food Nutrient Growth Enhancer GT AQUA 500ml
Brand new
£9.99
Free postage
Click & Collect
SEACHEM MALAWI VICTORIA BUFFER CARBONATE SALTS pH GH AQUARIUM CICHLID FISH TANK
Brand new
·
Seachem
(4)
£12.40
to
£32.50
Free postage
Click & Collect
144 sold
XL Indian Almond Leaves for Aquaria Catappa Betta Shrimp Pleco Blackwater Tannin
Brand new
·
Unbranded
£3.45
to
£142.96
(£142.96/Unit)
Free postage
API 5 in 1 Test Strips Kit Aquarium PH Nitrate Nitrite GH KH 4 pcs
Brand new
·
API
(46)
£5.49
Free postage
Only 1 left.
Salty Shrimp Shrimp Mineral GH / KH + 2550g
Brand new
£84.00
Free postage
Click & Collect
33 sold
Esha 6 in1 Aquarium Water Test Strips x 10 pH KH GH NO2 NO3 Cl FISH TANK AQUA
Brand new
£4.49
Free postage
148 sold
API Pond Melafix Anti Bacterial Infection Fin Rot Ulcer Koi Fish 237 473ml 1.89L
Brand new
·
API
(5)
£12.45
to
£16.45
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
105 sold
Colombo Algisin 5L 2.5L 1L Garden Fish Pond Blanketweed Treatment Algae Killer
Brand new
·
Colombo
(5)
£24.99
to
£69.95
Free postage
Click & Collect
NT Labs Test Kit Aquarium Fish Tank Tropical Freshwater Lab Testing pH & More
Brand new
(3)
£11.49
Free postage
Click & Collect
JBL PROSCAN RECHARGE WATER-ANALYSIS STRIPS FOR SMARTPHONE APP AQUARIUM FISH TANK
Brand new
·
JBL
(31)
£14.75
Free postage
Click & Collect
514 sold
API Accu Clear Cloudy Water Clarifier Aquarium Conditioner Freshwater Fish Tank
Brand new
·
API
(10)
£11.49
to
£14.99
Free postage
Click & Collect
28 sold
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
Est. delivery
Thu, Aug 14
1,098 sold
API PH DOWN 118ml FRESHWATER TROPICAL AQUARIUM FISH TANK AJUSTER WATER TREATMENT
Brand new
·
API
(8)
£10.95
Free postage
Click & Collect
276 sold
Seachem REEF TRACE 100ml 250ml 500ml Aquarium Marine Coral Elements Buffer
Brand new
·
Seachem
(1)
£9.99
to
£15.95
Free postage
API AQUARIUM 5 IN 1 WATER TEST KIT TESTING FRESH OR SALT WATER MARINE FISH TANK
Brand new
·
API
(46)
£6.45
to
£14.95
Free postage
Click & Collect
2,492 sold
RIKKA GH KH pH Freshwater Aquarium Water Test Kit Up to 50 tests. NEW!!!
Brand new
£9.71
Free postage
AquaDesign Aquarium Live Plant EI DOSING Fertiliser Set 250g X4 Dry Powder
Brand new
£39.99
(£39.99/kg)
Free postage
Click & Collect
18 sold
NT Labs Aquarium Treatment - Anti-Fungus Bacteria Parasite Fin-Rot Disease Algae
Brand new
·
NT Labs
(21)
£9.89
to
£11.79
Free postage
Click & Collect
23 sold
Aquarium Test Kit Holder NT Labs tropical marine water nitrate (KIT NOT INC)
Brand new
£9.99
Free postage
Click & Collect
81 sold
API Test Kit Testing and Draining Station - API Tube Holder Rack test tube
Brand new
·
Unbranded
£5.42
Free postage
101 sold
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