Skip to main content
Hi
!
Hello.
Sign in
or
register
Help & Contact
Sell
Watch List
Expand watch list
My eBay
Expand My eBay
Summary
Recently Viewed
Bids/Offers
Watch List
Purchase History
Selling
Saved feed
Saved Searches
Saved Sellers
My Garage
Messages
Expand Notifications
Please
sign in
to view notifications.
Expand Basket
Loading...
eBay Home
Shop by category
All Categories
Search
Advanced
Aquarium Water Tests & Treatment
Shop by Water Type
Fresh
Marine
Pond
All Water Types
Shop by Brand
API
Seachem
Tétra
Interpet
Fluval
JBL
Unbranded
King British
EasyLife
More to explore
Api Accu Clear
Api Prevent Algae
Api Stress Coat
Aquarium Clear Water
Aquarium Test Strips
Fauna Marin
Fish Tank Clear Water
Liquid Carbon
Pure Aquarium
Tetra Aquasafe 500ml
Browse by Brand
API
EasyLife
EHEIM
Fluval
Interpet
JBL
King British
Seachem
Tétra
Unbranded
breadcrumb
eBay
Home Garden
Pet Supplies
Home Garden
Pet Supplies
Fish & Aquarium
Water Tests & Treatment
Shop by category
Fish & Aquarium
Water Tests & Treatment
Air Pumps
Air Stones
Aquariums
CO2 Equipment
Cleaning & Maintenance
Coral & Live Rock
Decorations
Feeders
Filter Media & Accs.
Filters
Food
Gravel & Substrate
Health Care
Heaters & Chillers
Lighting & Hoods
Live Plants
Meters & Controllers
Other Fish & Aquarium
Reverse Osmosis & Deionization
Tubing & Valves
UV Steriliser
Water Pumps
More
View more categories
All listings
Auction
Buy It Now
Sort: Best match
Best match
Time: ending soonest
Time: newly listed
Price + postage: lowest first
Price + postage: highest first
Distance: nearest first
List view
Gallery view
14,298 results
Sort: Best match
Best match
Time: ending soonest
Time: newly listed
Price + postage: lowest first
Price + postage: highest first
Distance: nearest first
Filter
Brand
API
Aqua Medic
Dennerle
EasyLife
EHEIM
Fluval
Hagen
Hikari
Hobby
Interpet
JBL
Juwel
Red Sea
Seachem
sera
Tétra
Tropical Marine Centre
Unbranded
Waterlife
Zoo Med
Type
Aquarium Cycling Starter
Plant Fertiliser
Test Kit
Water Additive
Water Conditioner
Not specified
Test/Treatment Parameter
Algae
Alkalinity/KH
Ammonia
Bacteria
Chloramine
Chlorine
CO2
Copper
GH
Iron
Nitrate
Nitrite
Oxygen
pH Level
Phosphate
Salt
Silicate
Water Clarity
Not specified
Water Type
Fresh
Marine
Brackish
Pond
All Water Types
Not specified
Tank Capacity
200 gal.
Not specified
Condition
New
New other (see details)
Used
Not specified
Price
Under EUR 13
EUR 13 to EUR 30
Over EUR 30
All Filters
1x 15ml water hardness test kit titration solution liquid limestone test total hardness GH
Brand new
·
Business
EUR 8.99
EUR 9.89 P&P
411 sold
Hanna HI98319 Salinity Tester Specifically for Seawater Aquariums
Brand new
·
Business
EUR 92.99
EUR 17.99 P&P
Only 2 left
PREISHIT 500g Premium XL Sea Sandel Tree Leaves ✈ FREE SHIPPING Catappa Leaves
Brand new
·
Business
EUR 39.00
(EUR 78.00/kg)
EUR 9.90 P&P
105 sold
Reef Revolution Parasite Remover 100gm Polyp Lab Medic Reef Safe Ick White Spot
Brand new
EUR 54.33
EUR 20.63 P&P
Mixed bed resin pure resin PMB 101 water demineralization demineralized water ultrapure water
Brand new
·
Business
EUR 12.67
to
EUR 180.79
(EUR 180.79/Einheit)
Was:
EUR 212.70
was - EUR 212.70
EUR 15.90 P&P
Mixed bed medicine indicator resin full water desalination pure water filter granules
Brand new
·
Business
EUR 50.60
to
EUR 345.00
(EUR 345.00/Einheit)
EUR 15.90 P&P
Blue Green Algae Test Kit Quick 15 Minute Water Test for Lakes, Rivers, Ponds
Brand new
·
Business
EUR 35.55
EUR 2.36 P&P
Concentrated Aquarium Tap Water Dechlorinator Chlorine & Chloramine Remover INT
Brand new
·
Business
EUR 8.52
EUR 4.25 P&P
2,725 sold
Total Water Hardness Test Strips Kit x 10 Drinking Water Softener Testing Setup
Brand new
·
Business
·
SimplexHealth
EUR 4.73
EUR 2.36 P&P
7,478 sold
eSHa treatment against snails gastrobel 10ML eSHa
Brand new
·
Business
EUR 19.48
Free postage
274 sold
ESHA Trattamento Anti Lumaca Gastrobel 10ML ESHA
Brand new
·
Business
EUR 19.78
Free postage
Pack of 100 Sea Almond Tree Leaves 10-15cm (approx 100 grams) Terminalia Catappa Leaves
Brand new
·
Business
EUR 12.90
(EUR 129.00/kg)
EUR 6.90 P&P
1,606 sold
ESHA ANTI SNAIL TREATMENT GASTROBEL 10ML ESHA
Brand new
·
Business
EUR 11.30
EUR 7.00 P&P
200 sold
Easy Life Filter Medium 5000ml FFM Liquid Filter Medium Water Purifier
Brand new
·
Business
·
EasyLife
EUR 59.99
(EUR 12.00/L)
EUR 17.99 P&P
161 sold
LCA Low Tech Complete Premium Liquid Fertiliser Aquatic Fish Tank Live Plants
Brand new
EUR 51.54
EUR 27.51 P&P
Pond Bacteria Bakto Dry 500g Pond Bacteria Aqua Koi Water Values Stable
Brand new
·
Business
EUR 54.79
(EUR 109.58/kg)
EUR 15.50 P&P
80 sold
AQUAVERITY 7 IN 1 POND TEST STRIPS QUICK & EASY TO USE IN GARDEN PONDS 50 STRIPS
Brand new
·
Business
EUR 11.80
EUR 8.24 P&P
167 sold
100 Sea Sandel Tree Leaves 10-20cm Loose Terminalia Catappa Leaves Real BEST PRICE
Brand new
·
Business
EUR 9.99
EUR 6.90 P&P
1,042 sold
Electrode Storage Set PH/REDOX Wintering Storage Potassium Chloride KCL
Brand new
·
Business
EUR 14.90
to
EUR 24.10
EUR 15.90 P&P
Cloverleaf Absolute Wormer Plus Invert Shrimp Fish Friendly levamisole Treatment
Brand new
·
Business
EUR 16.22
EUR 17.78 P&P
132 sold
1000ml EasyLife Carbo + 1000ml Easy Profito Plants Fertilizer Aquariums Combination
Brand new
·
Business
·
EasyLife
EUR 30.90
(EUR 30.90/L)
EUR 9.95 P&P
294 sold
200 pieces 10-15 cm - sea almond leaves / catappa / water treatment
Brand new
·
Business
EUR 27.49
EUR 6.90 P&P
TOP OFFER clay fertilizer spheres aquarium / + NPK core + iron fertilizer excellent plant growth
Brand new
·
Business
EUR 6.80
to
EUR 16.80
EUR 4.50 P&P
971 sold
Ista Premium Aquarium Plant Liquid Fertiliser Food Nutrient Growth Enhancer
Brand new
·
Business
EUR 7.81
to
EUR 49.78
EUR 17.06 P&P
1000ml Easy Life Blue Exit Against Algae Problems Blue Algae
Brand new
·
Business
·
EasyLife
EUR 18.90
(EUR 18.90/L)
EUR 9.95 P&P
574 sold
SimplexHealth Drinking Water Free Chlorine Test Kit 0-300ppm (10 Strips)
Brand new
·
Business
EUR 4.73
EUR 2.36 P&P
95 sold
2x 1000ml Easy Life Liquid Filter Medium FFM Water Purifier Chlorine Ammonium
Brand new
·
Business
·
EasyLife
EUR 32.90
(EUR 16.45/L)
EUR 9.95 P&P
101 sold
TDS Water Tester for Tap Water Filter Aquarium ppm Digital TDS-EZ
Brand new
·
Business
EUR 34.99
(EUR 34.99/Einheit)
EUR 12.50 P&P
Economy package 1 liter each iron and NPK aquarium iron fertilizer aquarium fertilizer fertilizer
Brand new
·
Business
EUR 23.95
EUR 8.95 P&P
6-in-1 FISH TANK TEST STRIPS MARINE TROPICAL AQUARIUM TEST STRIPS 100pcs IN-326
Brand new
·
Business
EUR 9.43
EUR 8.24 P&P
502 sold
Set di canne da pesca Kit completi con canna da pesca telescopica e mulinello
Brand new
·
Private
·
- Senza marca/Generico -
EUR 22.40
Free postage
Approx 150gr 100 Pieces Best Sea Almond Tree Leaves FLASH SHIPPING Pure Natural Product
Plus premium food free sample of your choice: e.g. Hokkaido
Brand new
·
Business
EUR 12.89
(EUR 85.93/kg)
EUR 6.90 P&P
3,392 sold
Microbe-Lift Basic Carbopure Sili-Out Carbonate Calcium Reef Mortar Bio Pellets
Pre-owned
·
Private
EUR 3.80
to
EUR 70.00
EUR 16.49 P&P
30pcs Fertilizer Spheres - For Aquatic Plants Top Price Top Plant Growth in the Aquarium
Brand new
·
Business
EUR 2.99
or Best Offer
EUR 4.50 P&P
122 sold
Easy Life Carbo EasyCarbo 5L Carbon Fertilizer Fertilizer Aquarium Plants Care
Brand new
·
Business
·
EasyLife
EUR 69.90
(EUR 13.98/L)
EUR 9.95 P&P
264 sold
Cave Set 500gr - Sea Almond Tree Bark (500gr Approx 10 Pieces) Water Treatment
Brand new
·
Business
EUR 29.50
(EUR 59.00/kg)
EUR 6.90 P&P
114 sold
JBL EasyTest 6in1 PH GH KH NO2 NO3 CL2
Brand new
·
Private
·
JBL
EUR 19.62
EUR 6.00 P&P
New Vetark Fluke-Ex 10g Skin Gill Fish Lice Parasite Solve Medication Treatment.
Brand new
·
Business
EUR 21.06
EUR 19.21 P&P
Bark Sea Almond Tree Aquarium (1kg) - Intense than Sea Almond Tree Leaves pH Value
Brand new
·
Business
EUR 35.00
(EUR 35.00/kg)
or Best Offer
EUR 9.90 P&P
51 sold
Aquaforest Component 3in1 2000ml - ALL IN ONE LIQUID NEW 2024!
Brand new
·
Business
EUR 39.99
(EUR 20.00/L)
EUR 17.99 P&P
Only 2 left
XL sea sandel tree leaves 15 cm - 20 cm water treatment, shrimp, catfish, discus
Top Quality - Choose from 6 Countries -
Brand new
·
Business
EUR 1.00
to
EUR 99.00
EUR 6.90 P&P
Ista Black Water Extract Peat Conditioner Softener Aquarium Fish Tank Discus
Brand new
·
Business
EUR 7.10
to
EUR 56.89
EUR 17.06 P&P
49 sold
Alder cones against algae and spawning fungus natural product 60 / 120 or 180 pieces
Brand new
·
Business
EUR 6.00
to
EUR 16.00
EUR 4.50 P&P
Fertilizer Balls - Plant Fertilizer 30/50/100 or 200 Piece Soil Fertilizer Aquarium NEW
Brand new
·
Business
EUR 3.50
to
EUR 24.50
EUR 4.50 P&P
38 sold
30pcs Fertilizer Balls / Plant Fertilizer EXCELLENT Price for ́s Aquarium Soil Fertilizer NEW
Brand new
·
Business
EUR 2.99
EUR 4.50 P&P
2,345 sold
Leaves for Aquarium - Natural Water Quality - Food Fish Shrimp Catfish
Brand new
·
Business
EUR 1.99
(EUR 199.00/kg)
EUR 6.90 P&P
80 sold
Water Testing Strips Kit Nitrate Nitrite Test Strips x 5 Pack
Brand new
·
Business
EUR 4.73
EUR 2.36 P&P
196 sold
40 Fertilizer Balls - Plant Fertilizer - Soil Fertilizer for Plants Fertilizer for ́s Aquarium
Brand new
·
Business
EUR 6.66
EUR 4.50 P&P
227 sold
Cloverleaf Absolute Wormer Plus Fluke and Worm Killer 50g Aquarium Fish Discus.
Brand new
·
Business
·
Cloverleaf
EUR 14.51
EUR 17.78 P&P
1,283 sold
1000ml Easy Life AlgExit TOP Algae Killer Remedies Against Algae in the Aquarium
Brand new
·
Business
·
EasyLife
EUR 17.90
(EUR 17.90/L)
EUR 15.99 P&P
1,416 sold
Copper Check Water Test Strips x 5 Strips for Tap, Well, Fresh Water
Brand new
·
Business
EUR 4.73
EUR 2.36 P&P
232 sold
Mineral Cubes "Mineral Boost" / 50ml / Shrimp Aquarium Processor Snails
Brand new
·
Business
EUR 7.99
(EUR 15.98/100 ml)
or Best Offer
EUR 5.99 P&P
181 sold
15 Minute Water Bacteria Test Detects: Coliform and Non-Coliform Bacteria
Brand new
·
Business
EUR 22.51
EUR 2.36 P&P
NANO Sea Almond Leaves 10cm Catappa - Best Quality - 10-1000pcs
Brand new
·
Business
EUR 3.95
to
EUR 87.99
EUR 6.90 P&P
Vetark Fluke Solve Plus 100g Praziquantel Fish Skin Gill Parasite Fluke Med.
Brand new
·
Business
·
Vetark
EUR 70.83
EUR 19.21 P&P
630 sold
Mineral Cubes "Mix" / 120 Piece / Shrimp Aquarium Processor Snails Sepia
Brand new
·
Business
EUR 28.99
(EUR 0.24/Einheit)
or Best Offer
EUR 5.99 P&P
11 watching
2x1000ml Easy Life Carbo Carbon Fertilizer Aquarium Fertilizer CO2 Plant Fertilizer
Brand new
·
Business
·
EasyLife
EUR 34.90
(EUR 17.45/L)
EUR 9.95 P&P
421 sold
1 Gallon-Kordon AmQuel Plus Ammonia Detoxifier Conditioner 33461
Brand new
·
Kordon
EUR 52.59
EUR 95.95 P&P
HI782 Checker HC® - Nitrate in Seawater, High Measuring Range
Brand new
·
Business
EUR 74.90
EUR 17.99 P&P
Only 1 left.
Reef Revolution Parasite Remover 50gm Polyp Lab Medic Reef Safe Ick White Spot
Brand new
EUR 40.57
EUR 20.63 P&P
Results Pagination - Page 1
1
2
3
4
5
6
7
8
9
10