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CATEGORIES
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Water Tests & Treatment
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Cleaning & Maintenance
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Health Care
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Filters
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Filter Media & Accessories
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Other Fish & Aquarium Supplies
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Algae Repellent
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Food
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Fish Pond Supplies
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Aquariums & Tanks
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Decorations
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Tubing & Valves
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Feeders
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UV Sterilizers
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Pumps (Air)
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Live Plants
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Heaters & Chillers
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Live Fish
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CO2 Equipment
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API within the FISH & AQUARIUMS category search found 2,195 items
Picture
Description
Price
Time Left
eBay:
API Nexx Filter Extension
80.00 CAD
29d 6h
eBay:
Mars Fishcare (API) Master Freshwater Test Kit pond aquarium
19.99 CAD
15d 13h
eBay:
API Freshwater Master Test Kit
16.00 USD
25d 22h
eBay:
API GH & KH Test Kit
11.00 USD
21d 4h
eBay:
API Freshwater Master Test Kit
32.99 USD
24d 7h
eBay:
API Pond Care AlgaeFix 32 oz. Pond Algae Control 169 G
33.88 USD
29d 23h
eBay:
Various API Water Test Kit
16.99 USD
30d 18h
eBay:
API FRESH WATER MASTER TEST KIT OVER 800 TESTS SEALED NEW! Exp 12 2026 & UP!
38.50 USD
1d 18h
eBay:
API Powder General Cure 10 count (2 Pack)
26.10 USD
8d 22h
eBay:
API STRESS COAT Aquarium Water Conditioner 16 Ounce Bottle
13.10 USD
30d 18h
eBay:
API POND MASTER TEST KIT Pond Water Test Kit OVER 500 TEST EXP 03 2026 NEW
59.99 CAD
2d 9h
eBay:
API Pond AlgaeFix 8oz Fast Algae Growth Control Water Gardens Fountains Ponds
13.99 USD
23d 1h
eBay:
API TAP WATER CONDITIONER Aquarium Water Conditioner 32 Ounce Brand New
25.45 USD
6d 10h
eBay:
API pH Down 4oz Lowers Freshwater Aquarium pH Safe for Plants and Fish
10.20 USD
22d 16h
eBay:
API 5 in 1 Aquarium Test Strips for Freshwater and Saltwater Aquariums 25 Tests
15.89 USD
9d 17h
eBay:
API Quick Start 8oz Natural Fast Aquarium Cycle for Marine and Freshwater Tanks
15.99 USD
6d 5h
eBay:
API Pond AlgaeFix Controls Algae Growth and Works Fast 32 oz; Free Shipping
33.59 USD
17d 12h
eBay:
API Marine Algaefix 16 oz.
22.99 USD
1d 1h
eBay:
API PH Test Kit Exp 10 2028 250 Tests FRESHWATER ONLY
9.80 USD
7d 4h
eBay:
API Root Tabs 10 Count
10.99 USD
2d 23h
eBay:
API General Cure Freshwater and Saltwater Fish Powder Medication 10 Count
15.99 USD
1d 3h
eBay:
API Proper pH 7.0 Powder 8.8oz Sets and Stabilizes Freshwater Aquarium pH to 7.0
12.99 USD
30d 9h
eBay:
API STRESS COAT Aquarium Water Conditioner 32 Ounce Bottle: Free U.S Shipping
27.61 USD
11d 21h
eBay:
LM API Aquarium Start Up Pack 1 oz 2 Bottles
10.87 USD
25d 20m
eBay:
API QUICK START (16oz) Nitrifying Cycle Bacteria Fish Tank Aquarium Additive
20.94 USD
24d 51m
eBay:
API Fin & Body Cure Fish Medication (10 Packets) Fish Tank Aquarium Treatment
17.35 USD
24d 51m
eBay:
API Pond Care Algaefix 2.5 gal. Pond Algae Control 169J
139.98 USD
29d 30m
eBay:
API pH UP Aquarium pH Treatment 16 Ounces
25.37 USD
24d 16h
eBay:
API AlgaeFix Carded Controls Algae Growth in Freshwater Aquariums 1.25 oz
8.89 USD
22d 17h
eBay:
API MARINE REEF MASTER TEST KIT EXP 03 2025
28.00 USD
21d 23h
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