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26 - 47 of 47
API Stress Zyme

API Stress Zyme

Improves the development of the biological filter and helps clean a dirty aquarium. Contains over 300 million live bacteria per teaspoonful. Breaks down organic compounds that cause dangerous conditions such as ammonia and nitrite...

From $7.22
API Stress Coat

API Stress Coat

Instantly removes chlorine and chloramines , making tap water safe for fish. Neutralizes heavy metals. Also, replaces the natural slime coating fish need in times of stress, such as handling, shipping or fighting. Contains Aloe V...

From $8.07
API Accu-Clear

API Accu-Clear

Quickly clears cloudy aquarium water, eliminating clouds caused by dirt. Clumps tiny particles, causing them to fall to the bottom or collect in the filter . Makes any filter work more efficiently to create crystal-clear water fa...

From $5.94
API pH Down 16oz

API pH Down 16oz

Lowers pH and makes aquariums more acidic. Fast-acting, colorless and easy-to-use. Purpose and Benefits: pH Down is a liquid pH lowering product for freshwater aquariums. pH Down lowers pH by neutralizing carbonate hardness ...

$12.49 $10.62
API pH Up 16oz

API pH Up 16oz

Raises pH and makes aquariums more alkaline. Fast-acting, colorless and easy-to-use. Purpose and Benefits: pH Up is a liquid pH raising product for freshwater aquariums. By neutralizing acidic substances in the aquarium, pH Up...

$12.49 $10.62
API Quick Start

API Quick Start

In a new aquarium , harmful ammonia and nitrite build up from fish waste, often resulting in fish loss. The unique, patented nitrifying bacteria in API Quick Start are scientifically proven to quickly consume ammonia and nitrit...

From $7.64
API Freshwater/Saltwater Nitrate Test Kit, Test kit of 90 tests

API Freshwater/Saltwater Nitrate Test Kit, Test kit of 90 tests

Measures nitrate levels in both fresh & saltwater aquariums. Tests nitrate levels from 0 to 160 ppm. 90 tests per kit. Freshwater/Saltwater Nitrate Test Instructions: Why Test For Nitrate? Nitrate (NO3-) is produced in t...

$9.99 $8.49
API Freshwater/Saltwater High Range pH Test Kit, Test kit of 250 tests

API Freshwater/Saltwater High Range pH Test Kit, Test kit of 250 tests

Use to measure pH changes in marine aquariums, aquariums with African cichlids, and very alkaline tap water. Reads the pH of water within the high range of 7.4 to 8.8. 160 tests per kit. Freshwater/Saltwater High Range pH T...

$5.49 $4.67
API Melafix Marine

API Melafix Marine

Anti-Bacterial Fish & Coral Remedy: An all natural fish & coral treatment with tea tree extract (Melaleuca). Melafix® Marine rapidly repairs damaged fins, ulcers and open wounds, and also reverses coral degradation. 16...

From $8.49
API Doc Wellfish`s Algae Scraper

API Doc Wellfish`s Algae Scraper

An incredibly durable algae scraper for cleaning aquarium walls. Made with an 18" long, strong handle, and both a scrubbing pad and a hard scraping tip. Removes even the toughest algae quickly and easily. For glass aquariums....

From $4.67
API Freshwater/Saltwater Copper Test Kit, Test kit of 90 tests

API Freshwater/Saltwater Copper Test Kit, Test kit of 90 tests

Test reads 0 to 4 mg/L or parts per million (ppm) of copper. Helps to maintain a healthy aquarium or pond for fish by ensuring that copper (a common treatment for many parisitic infections) levels are within the healthy range. Tes...

$7.99 $6.79
API 5 in 1 Aquarium Test Strips

API 5 in 1 Aquarium Test Strips

Measures pH, Nitrite, Nitrate, Carbonate & General Hardness.  Just dip & read! 25 ct

$13.49 $11.47
API Phos-Zorb Cartridge for SuperClean Power Filters

API Phos-Zorb Cartridge for SuperClean Power Filters

Phos-Zorb Cartridge for API SuperClean 50 Power Filter - Single Pack *Eliminates cloudy water Features: High quality filtration media Removes phosphates, silicates and debris Densely filled cartridge for better value ...

From $6.79
API Tap Water Conditioner 16oz

API Tap Water Conditioner 16oz

Super-strength water conditioner. Instantly removes chlorine and detoxifies heavy metals in tap water. Use when setting up a new aquarium or adding water. Safe for all aquatic life. One teaspoon treats 10 gallons. Bottle treats 75...

$6.99 $5.94
API Nitra-Zorb Cartridge for SuperClean Power Filters

API Nitra-Zorb Cartridge for SuperClean Power Filters

Nitra-Zorb Cartridge for API SuperClean 50 Power Filter - Single Pack *Reduce risk of fish loss Features: High quality filtration media Removes debris, ammonia, nitrites and nitrates Densely filled cartridge for bette...

From $6.79
API Bio-Chem ZORB for NEXX or RENA Filters Size 4

API Bio-Chem ZORB for NEXX or RENA Filters Size 4

Advanced filtration material for crystal clear water designed to fit the API nexx FILTER. Better than carbon alone! Ultimate filtration medium for crystal clear water. Bio-Chem Zorb® removes organic aquarium pollutants, including...

From $8.99
API SuperClean 10 Internal Power Filter

API SuperClean 10 Internal Power Filter

API SUPERCLEAN internal power filter is a low maintenance, easy to use, compact filter for small aquariums up to 10 US gallons. API SUPERCLEAN makes water clean and crystal clear. The exclusive research grade resin-carbon blend ...

$13.99 $11.89
API Doc Wellfish`s Aquarium Salt

API Doc Wellfish`s Aquarium Salt

All natural salt, made from evaporated sea water, promotes healthy gill function, reduces stress and loss of electrolytes. Used to improve the efficiency of medications and reduce the harmful effects of nitrite. Purpose and Bene...

From $3.39
API Nitra-Zorb 7.4oz

API Nitra-Zorb 7.4oz

A convenient pouch of natural and synthetic ion-exchange resins that selectively remove ammonia, nitrite, and nitrate from freshwater aquariums. Completely phosphate-free. Treats up to 55 Gallons. Purpose and Benefits: Nitra...

$9.49 $8.07
API Algaefix Marine 16oz

API Algaefix Marine 16oz

Reef safe aquarium algaecide. Controls many types of algae in marine and reef aquariums . Will not harm marine fish, corals and other invertebrates. Will not harm coralline algae. Effectively controls Green algae, Red Slime, an...

$12.99 $11.04
API Ammo-Carb 37oz

API Ammo-Carb 37oz

A special blend of highly activated carbon - an economical filter carbon for the tropical fish hobbyist. Removes colors, odors & poisonous waste from fresh and saltwater aquariums. Can be used in all filter cartridges. Usage:...

$7.49 $6.37
API Bio-Chem Zorb 10oz

API Bio-Chem Zorb 10oz

The most scientifically-advanced filter media available. For sparkling clean water and healthy fish. Bio-Chem Zorb is a blend of 2 research-grade scavenger resins, 2 pharmaceutical-grade ion-exchange resins and high porosity acti...

$8.99 $7.64
26 - 47 of 47
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