API

API makes water care products for freshwater and saltwater aquariums and garden ponds — the treatments, tests and foods most fishkeepers use week to week.

What You'll Find Here

  • Test kits and strips — Master Test Kits for freshwater, saltwater, reef and pond, plus single-parameter kits for ammonia, nitrite, nitrate, pH, KH, GH, phosphate, calcium and copper
  • Water conditioners — Stress Coat, Tap Water Conditioner, Aqua Essential and Ammo-Lock
  • Bacteria and cleaners — Quick Start, Stress Zyme and pond sludge destroyers
  • Treatments — Melafix, Pimafix, Super Ick Cure, Algaefix and Turtle Fix
  • pH and hardness — pH Up, pH Down, Proper pH buffers and the Water Softener Pillow
  • Filter media — activated carbon, Bio-Chem Zorb, Phos-Zorb and Bio-Chem Stars
  • Plant care and food — Leaf Zone, Root Tabs, CO2 Booster and pellet and wafer foods

Choosing Products

  • Start every new tank with a water conditioner and live bacteria, then test ammonia and nitrite during the first weeks.
  • Check whether a product is for freshwater, saltwater or ponds before buying.

Good To Know

  • Remove activated carbon from the filter while using medications, and follow label doses exactly.
  • Doses on US packs are in US gallons — 1 US gallon is about 3.8 litres.

Showing 61–72 of 88 results

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API Pond Accu-Clear Water Clarifier - 16oz

The API Pond Accu-Clear Water Clarifier 16oz is a pond clarifier that clumps suspended particles so they settle or get caught by the filter.Key Features Clears cloudy pond water Clumps fine...

API pH Test Strips - For Aquarium - 25 Strips

The API pH Test Strips 25 Strips is a pack of 25 dip-and-read strips that check pH in freshwater and saltwater aquariums.Key Features Measures pH from 6.0 to 9.0 For freshwater...

API Pond Cool Water Fish Food - 11oz

The API Pond Cool Water Fish Food 11oz is a pond food for koi and goldfish made for cooler water, when fish digest more slowly.Key Features For koi and goldfish in...

API Proper pH 8.2 Buffer - For Saltwater & Cichlid Aquarium - 7.1oz

The API Proper pH 8.2 Buffer 7.1oz is a powder buffer that sets and holds pH at 8.2, for saltwater, brackish and African cichlid aquariums.Key Features Sets and holds pH at...

API Proper pH 7.5 Buffer - For Freshwater Aquarium - 9.2oz

The API Proper pH 7.5 Buffer 9.2oz is a powder buffer that sets and holds freshwater aquarium pH at 7.5.Key Features Sets and holds pH at 7.5 Removes chlorine and detoxifies...

API Proper pH 7.0 Buffer - For Freshwater Aquarium - 8.8oz

The API Proper pH 7.0 Buffer 8.8oz is a powder buffer that sets and holds freshwater aquarium pH at a neutral 7.0, suited to tropical community tanks.Key Features Sets and holds...

API Proper pH 6.5 Buffer - For Freshwater Aquarium - 8.5oz

The API Proper pH 6.5 Buffer 8.5oz is a powder buffer that sets and holds freshwater aquarium pH at 6.5, suited to tetras, discus and angelfish.Key Features Sets and holds pH...

API Perfect Start Aquarium Start Up Kit

The API Perfect Start Aquarium Start Up Kit is an aquarium starter kit with four API treatments to prepare water and start the cycle in tanks up to 57 litres (15...

API Marine Stress Zyme Bacterial Cleaner - 16oz

The API Marine Stress Zyme Bacterial Cleaner 16oz is a live bacterial cleaner for saltwater aquariums that breaks down sludge and organic waste.Key Features Live bacteria consume sludge and organic debris...

API Marine Quick Start Nitrifying Bacteria - 16oz

The API Marine Quick Start Nitrifying Bacteria 16oz is live nitrifying bacteria for saltwater aquariums that help start the nitrogen cycle and reduce ammonia and nitrite.Key Features Live nitrifying bacteria for...

API Goldfish Care Pack

The API Goldfish Care Pack is a two-bottle pack for goldfish tanks: Goldfish Protect to make tap water safe and Goldfish Aquarium Cleaner to break down sludge.Key Features Goldfish Protect conditions...

API Betta Water Conditioner - 1.7oz

The API Betta Water Conditioner 1.7oz is a water conditioner for betta tanks that removes chlorine, chloramine and heavy metals and adds aloe vera.Key Features Removes chlorine and chloramine and detoxifies...