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Best Seller
PondCare Accu-Clear Pond Clarifier, 16 FZ

PondCare Accu-Clear Pond Clarifier, 16 FZ

Purpose and Benefits: PondCare Accu-Clear is a colorless liquid that rapidly eliminates cloudy water in koi ponds and water gardens. Newly constructed ponds may develop cloudy water during the first few weeks, especially in warm, sunny conditions.... ... more

PondCare Accu-Clear Pond Clarifier, 16 FZ

Purpose and Benefits: PondCare Accu-Clear is a colorless liquid that rapidly eliminates cloudy water in koi ponds and water gardens. Newly constructed ponds may develop cloudy water during the first few weeks, especially in warm, sunny conditions....

Petco.com

$12.14

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UVC In-Line Clarifier

UVC In-Line Clarifier

It's time to say goodbye to murky and green aquarium water, thanks to the Fluval UVC In-Line Clarifier! This bad boy is so easy to connect to most canister filter setups, you'll be done faster than your fish can swim a lap. Say hello to crystal-clear... ... more

UVC In-Line Clarifier

It's time to say goodbye to murky and green aquarium water, thanks to the Fluval UVC In-Line Clarifier! This bad boy is so easy to connect to most canister filter setups, you'll be done faster than your fish can swim a lap. Say hello to crystal-clear...

Petco.com

$87.99

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Best Seller
Water Clarifier Clears Cloudy Aquarium Water, 8.45 oz., 8.45 FZ

Water Clarifier Clears Cloudy Aquarium Water, 8.45 oz., 8.45 FZ

TetraAqua Water ClarifierTetraAqua Water Clarifier quickly clears cloudy aquarium water caused by overfeeding, gravel dust and other minute suspended particles. This phosphate free formula will not affect pH levels and is safe for fish and plants. For... ... more

Water Clarifier Clears Cloudy Aquarium Water, 8.45 oz., 8.45 FZ

TetraAqua Water ClarifierTetraAqua Water Clarifier quickly clears cloudy aquarium water caused by overfeeding, gravel dust and other minute suspended particles. This phosphate free formula will not affect pH levels and is safe for fish and plants. For...

Petco.com

$6.99

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API Aquarium Tap Water Conditioner, 4 oz., 0.7-oz (single pyramid)

API Aquarium Tap Water Conditioner, 4 oz., 0.7-oz (single pyramid)

Aquarium Pharmaceuticals Aquarium Tap Water ConditionerSuper-strength water conditioner. Instantly removes chlorine and neutralizes chloramines. Also detoxifies heavy metals in tap water. Requires only one drop per U.S. gallon. Use when setting up a... ... more

API Aquarium Tap Water Conditioner, 4 oz., 0.7-oz (single pyramid)

Aquarium Pharmaceuticals Aquarium Tap Water ConditionerSuper-strength water conditioner. Instantly removes chlorine and neutralizes chloramines. Also detoxifies heavy metals in tap water. Requires only one drop per U.S. gallon. Use when setting up a...

Petco.com

$4.78

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API Stress Coat Aquarium Water Conditioner, 16 oz., 16 FZ

API Stress Coat Aquarium Water Conditioner, 16 oz., 16 FZ

The healing power of Aloe Vera: Replaces slime coat Reduces electrolyte loss Promotes tissue regeneration Removes chlorine and neutralizes chloramines When to use: When setting up an aquarium, adding or handling fish, changing water or when fish are... ... more

API Stress Coat Aquarium Water Conditioner, 16 oz., 16 FZ

The healing power of Aloe Vera: Replaces slime coat Reduces electrolyte loss Promotes tissue regeneration Removes chlorine and neutralizes chloramines When to use: When setting up an aquarium, adding or handling fish, changing water or when fish are...

Petco.com

$9.45

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Accu-Clear, 8 oz., 8 FZ

Accu-Clear, 8 oz., 8 FZ

The API Accu-Clear 8 oz. quickly clears up any cloudiness caused by dirt, algae, or bacterial bloom. It's completely safe for all fish and plants and made in the USA. The easy-to-use formula requires no complicated instructions. ... more

Accu-Clear, 8 oz., 8 FZ

The API Accu-Clear 8 oz. quickly clears up any cloudiness caused by dirt, algae, or bacterial bloom. It's completely safe for all fish and plants and made in the USA. The easy-to-use formula requires no complicated instructions.

Petco.com

$10.49

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API Freshwater Master Test Kit

API Freshwater Master Test Kit

Our Master Test Kit is packaged with a sturdy, waterproof box which includes fast, easy and accurate test solutions for pH, high range pH, ammonia and nitriteEasily and accurately measure the water conditions in your aquariumScientifically accurate for... ... more

API Freshwater Master Test Kit

Our Master Test Kit is packaged with a sturdy, waterproof box which includes fast, easy and accurate test solutions for pH, high range pH, ammonia and nitriteEasily and accurately measure the water conditions in your aquariumScientifically accurate for...

Petco.com

$35.98

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Simply-Clear Bacterial Pond Clarifier, 16 FZ

Simply-Clear Bacterial Pond Clarifier, 16 FZ

Bring some sparkle and clarity back to your pond with the API Simply-Clear Bacterial Pond Clarifier! This little wonder-worker packs a punch, zapping away all the gunk that builds up in your pond and leaving you with crystal-clear water that you can be... ... more

Simply-Clear Bacterial Pond Clarifier, 16 FZ

Bring some sparkle and clarity back to your pond with the API Simply-Clear Bacterial Pond Clarifier! This little wonder-worker packs a punch, zapping away all the gunk that builds up in your pond and leaving you with crystal-clear water that you can be...

Petco.com

$15.48

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AquaPacs Water Clarifier, 10 Gallon, Pack of 4, 4 CT

AquaPacs Water Clarifier, 10 Gallon, Pack of 4, 4 CT

Achieve crystal-clear aquarium water with Aqueon AquaPacs Water Clarifier. These convenient balls bind particles caused by food, debris, sediment, and tank maintenance together for easy removal through filtration or netting. Safe with no risk of... ... more

AquaPacs Water Clarifier, 10 Gallon, Pack of 4, 4 CT

Achieve crystal-clear aquarium water with Aqueon AquaPacs Water Clarifier. These convenient balls bind particles caused by food, debris, sediment, and tank maintenance together for easy removal through filtration or netting. Safe with no risk of...

Petco.com

$8.40

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API Aquarium Salt, 16 oz., White

API Aquarium Salt, 16 oz., White

During disease and stress, healthy gill function is disturbed. This can lead to the loss of electrolytes through the gills. This reduces the intake of oxygen and release of carbon dioxide from the fish. Aquarium Salt reduces electrolyte loss and... ... more

API Aquarium Salt, 16 oz., White

During disease and stress, healthy gill function is disturbed. This can lead to the loss of electrolytes through the gills. This reduces the intake of oxygen and release of carbon dioxide from the fish. Aquarium Salt reduces electrolyte loss and...

Petco.com

$6.74

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API Aquarium Salt, 33 oz., White

API Aquarium Salt, 33 oz., White

During disease and stress, healthy gill function is disturbed. This can lead to the loss of electrolytes through the gills. This reduces the intake of oxygen and release of carbon dioxide from the fish. Aquarium Salt reduces electrolyte loss and... ... more

API Aquarium Salt, 33 oz., White

During disease and stress, healthy gill function is disturbed. This can lead to the loss of electrolytes through the gills. This reduces the intake of oxygen and release of carbon dioxide from the fish. Aquarium Salt reduces electrolyte loss and...

Petco.com

$10.49

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API Ammo Lock, 4 oz., 4 FZ

API Ammo Lock, 4 oz., 4 FZ

BenefitsPromotes healthy gill function and eliminates fish stress caused by ammonia. Each dose of Ammo-Lock will detoxify 3.0 ppm of ammonia, 7.0 ppmof chlorine and 5.0 ppm of chloramines. When to UseTo detoxify ammonia from tap water, fish water or... ... more

API Ammo Lock, 4 oz., 4 FZ

BenefitsPromotes healthy gill function and eliminates fish stress caused by ammonia. Each dose of Ammo-Lock will detoxify 3.0 ppm of ammonia, 7.0 ppmof chlorine and 5.0 ppm of chloramines. When to UseTo detoxify ammonia from tap water, fish water or...

Petco.com

$6.98

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API Tap Water Conditioner, 16 fl. oz., 16 FZ

API Tap Water Conditioner, 16 fl. oz., 16 FZ

BenefitsWorks instantly to detoxify heavy metals, remove chlorine and break the chloramines bond. When to UseUse whenever setting up an aquarium, changing water or adding water to the aquarium. Heavy metals such as copper, lead and zinc can be found in... ... more

API Tap Water Conditioner, 16 fl. oz., 16 FZ

BenefitsWorks instantly to detoxify heavy metals, remove chlorine and break the chloramines bond. When to UseUse whenever setting up an aquarium, changing water or adding water to the aquarium. Heavy metals such as copper, lead and zinc can be found in...

Petco.com

$8.48

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Goldfish Aquarium Cleaner, 4 fl. oz., 4 oz.

Goldfish Aquarium Cleaner, 4 fl. oz., 4 oz.

Because Goldfish deserve to live in a sparkling clean underwater palace, we've created the API Goldfish Aquarium Cleaner! This magical elixir simplifies the chore of maintaining your aquatic buddies by helping you clean their dirty aquarium or bowl... ... more

Goldfish Aquarium Cleaner, 4 fl. oz., 4 oz.

Because Goldfish deserve to live in a sparkling clean underwater palace, we've created the API Goldfish Aquarium Cleaner! This magical elixir simplifies the chore of maintaining your aquatic buddies by helping you clean their dirty aquarium or bowl...

Petco.com

$4.28

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AquaPacs Water Clarifier, 10 Gallon, Pack of 12, 12 CT

AquaPacs Water Clarifier, 10 Gallon, Pack of 12, 12 CT

Achieve crystal-clear aquarium water with Aqueon AquaPacs Water Clarifier. These convenient balls bind particles caused by food, debris, sediment, and tank maintenance together for easy removal through filtration or netting. Safe with no risk of... ... more

AquaPacs Water Clarifier, 10 Gallon, Pack of 12, 12 CT

Achieve crystal-clear aquarium water with Aqueon AquaPacs Water Clarifier. These convenient balls bind particles caused by food, debris, sediment, and tank maintenance together for easy removal through filtration or netting. Safe with no risk of...

Petco.com

$14.45

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F Clarifier, 25 ml., 1.06 FZ

F Clarifier, 25 ml., 1.06 FZ

Enjoy sparkling clear water all the time! Just a few drops clear cloudy and polluted water within hours. Acurel F removes suspended particles that make your water dirty and greatly improves filter efficiency. Gives aquarium water a "just polished"... ... more

F Clarifier, 25 ml., 1.06 FZ

Enjoy sparkling clear water all the time! Just a few drops clear cloudy and polluted water within hours. Acurel F removes suspended particles that make your water dirty and greatly improves filter efficiency. Gives aquarium water a "just polished"...

Petco.com

$4.99

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API Stress Zyme, 4 oz., 4 FZ

API Stress Zyme, 4 oz., 4 FZ

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 poisoning and low... ... more

API Stress Zyme, 4 oz., 4 FZ

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 poisoning and low...

Petco.com

$5.88

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API Water Softener Pillow, Small, 2 OZ

API Water Softener Pillow, Small, 2 OZ

Water Softener Pillow protects tropical fish form hard water by removing Calcium, Magnesium and heavy metals. Our pillow helps stabilize pH while eliminating white crusty deposits from your tank. In addition, our pillow may be recharged and re-used up... ... more

API Water Softener Pillow, Small, 2 OZ

Water Softener Pillow protects tropical fish form hard water by removing Calcium, Magnesium and heavy metals. Our pillow helps stabilize pH while eliminating white crusty deposits from your tank. In addition, our pillow may be recharged and re-used up...

Petco.com

$7.58

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API PondCare Pond-Zyme with Barley, 8 oz.

API PondCare Pond-Zyme with Barley, 8 oz.

Purpose and Benefits: Pond-Zyme Plus is a heavy-duty pond cleaner, containing five specially selected bacterial strains in a stable dry form. Pond-Zyme Plus breaks down fish waste and dead algae that can cause cloudy water, sludge build-up, and debris... ... more

API PondCare Pond-Zyme with Barley, 8 oz.

Purpose and Benefits: Pond-Zyme Plus is a heavy-duty pond cleaner, containing five specially selected bacterial strains in a stable dry form. Pond-Zyme Plus breaks down fish waste and dead algae that can cause cloudy water, sludge build-up, and debris...

Petco.com

$19.98

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API Stress Zyme, 16 oz., 16 FZ

API Stress Zyme, 16 oz., 16 FZ

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 poisoning and low... ... more

API Stress Zyme, 16 oz., 16 FZ

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 poisoning and low...

Petco.com

$16.18

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API Freshwater pH Test Kit, Standard

API Freshwater pH Test Kit, Standard

Easily and accurately measure the pH level in your freshwater aquarium from 6.0 to 7.6 ppm. Kit contains dropper bottle for accurate dispensing of liquid test solution, easy to read instructions and color chart, glass tube and lid.What is pH?pH is the... ... more

API Freshwater pH Test Kit, Standard

Easily and accurately measure the pH level in your freshwater aquarium from 6.0 to 7.6 ppm. Kit contains dropper bottle for accurate dispensing of liquid test solution, easy to read instructions and color chart, glass tube and lid.What is pH?pH is the...

Petco.com

$7.98

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API Algaefix, 8 oz., 8 FZ

API Algaefix, 8 oz., 8 FZ

AlgaeFix easy to use water conditioner effectively controls "green water" algae blooms and helps resolve algae problems in your freshwater aquarium containing live plants and fish.Treats up to 2,400 gallonsReduces aquarium maintenance ... more

API Algaefix, 8 oz., 8 FZ

AlgaeFix easy to use water conditioner effectively controls "green water" algae blooms and helps resolve algae problems in your freshwater aquarium containing live plants and fish.Treats up to 2,400 gallonsReduces aquarium maintenance

Petco.com

$13.99

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API PondCare Stress Coat Freshwater Conditioner, 16 oz., 16 FZ

API PondCare Stress Coat Freshwater Conditioner, 16 oz., 16 FZ

Purpose and Benefits: Stress Coat is a water conditioner suitable for water gardens and ponds containing fish and plants. Stress Coat contains Aloe Vera, which acts as a liquid bandage, to protect and heal damaged fish tissue. Goldfish and koi secrete... ... more

API PondCare Stress Coat Freshwater Conditioner, 16 oz., 16 FZ

Purpose and Benefits: Stress Coat is a water conditioner suitable for water gardens and ponds containing fish and plants. Stress Coat contains Aloe Vera, which acts as a liquid bandage, to protect and heal damaged fish tissue. Goldfish and koi secrete...

Petco.com

$12.48

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API Freshwater Deluxe pH Test Kit

API Freshwater Deluxe pH Test Kit

Fast, accurate and easy-to-use kit contains dropper bottle, test solution, easy-to-read instructions, color chart and glass tube with lid for 250 tests for pH level from 6.0 to 7.6 ppm.What is pH?pH is the measure of acidity or alkalinity of water. A... ... more

API Freshwater Deluxe pH Test Kit

Fast, accurate and easy-to-use kit contains dropper bottle, test solution, easy-to-read instructions, color chart and glass tube with lid for 250 tests for pH level from 6.0 to 7.6 ppm.What is pH?pH is the measure of acidity or alkalinity of water. A...

Petco.com

$12.98

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API Freshwater/Saltwater Ammonia Test Kit

API Freshwater/Saltwater Ammonia Test Kit

Fast, accurate and easy-to-use kit contains two dropper bottles, test solutions, easy-to-read instructions, color chart and glass tube with lid for 130 tests for ammonia level from 0 to 8 ppm.Why test for Ammonia?Tropical fish continuously release... ... more

API Freshwater/Saltwater Ammonia Test Kit

Fast, accurate and easy-to-use kit contains two dropper bottles, test solutions, easy-to-read instructions, color chart and glass tube with lid for 130 tests for ammonia level from 0 to 8 ppm.Why test for Ammonia?Tropical fish continuously release...

Petco.com

$15.48

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QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 16-Ounce Bottle, 16 FZ

QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 16-Ounce Bottle, 16 FZ

Introducing the API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 16-Ounce Bottle - the secret weapon to combating harmful ammonia and nitrite buildup in your aquarium. Don't let new tank syndrome ruin your aquatic adventure, let... ... more

QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 16-Ounce Bottle, 16 FZ

Introducing the API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 16-Ounce Bottle - the secret weapon to combating harmful ammonia and nitrite buildup in your aquarium. Don't let new tank syndrome ruin your aquatic adventure, let...

Petco.com

$29.99

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Aquarium Start Up Pack

Aquarium Start Up Pack

After you've set up your aquarium, you want to make sure it's a safe and happy place for your fish friends. That's where the API Aquarium Start Up Pack comes in! This magical pack makes tap water safe for your fish, so you can enjoy their company... ... more

Aquarium Start Up Pack

After you've set up your aquarium, you want to make sure it's a safe and happy place for your fish friends. That's where the API Aquarium Start Up Pack comes in! This magical pack makes tap water safe for your fish, so you can enjoy their company...

Petco.com

$6.29

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pH DOWN Freshwater Aquarium Water pH Reducing Solution 4-Ounce Bottle, 4 OZ

pH DOWN Freshwater Aquarium Water pH Reducing Solution 4-Ounce Bottle, 4 OZ

If you're a fish enthusiast, you know that pH levels are super important for your underwater friends to thrive. With this 4-ounce bottle of magic, you can easily adjust your aquarium's pH to the perfect level for your fishy friends. ... more

pH DOWN Freshwater Aquarium Water pH Reducing Solution 4-Ounce Bottle, 4 OZ

If you're a fish enthusiast, you know that pH levels are super important for your underwater friends to thrive. With this 4-ounce bottle of magic, you can easily adjust your aquarium's pH to the perfect level for your fishy friends.

Petco.com

$5.88

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Aquarium Calcium Test Kit

Aquarium Calcium Test Kit

Make sure your reef is rockin' with the API Aquarium Calcium Test Kit! This kit makes it a breeze to measure calcium levels and keep your underwater kingdom healthy. With its trusty titration method and easy-to-see color change, you'll be able to get... ... more

Aquarium Calcium Test Kit

Make sure your reef is rockin' with the API Aquarium Calcium Test Kit! This kit makes it a breeze to measure calcium levels and keep your underwater kingdom healthy. With its trusty titration method and easy-to-see color change, you'll be able to get...

Petco.com

$18.99

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Algaefix, 16 fl. oz., 16 FZ

Algaefix, 16 fl. oz., 16 FZ

Aquarium Pharmaceuticals AlgaefixAquarium Pharmaceuticals Algaefix is a revolutionary product specially developed to control many types of algae in freshwater aquariums containing live fish and plants. Algaefix effectively controls green water algae... ... more

Algaefix, 16 fl. oz., 16 FZ

Aquarium Pharmaceuticals AlgaefixAquarium Pharmaceuticals Algaefix is a revolutionary product specially developed to control many types of algae in freshwater aquariums containing live fish and plants. Algaefix effectively controls green water algae...

Petco.com

$16.98

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Algaefix, 4 oz., 4 FZ

Algaefix, 4 oz., 4 FZ

Aquarium Pharmaceuticals AlgaefixAquarium Pharmaceuticals Algaefix is a revolutionary product specially developed to control many types of algae in freshwater aquariums containing live fish and plants. Algaefix effectively controls green water algae... ... more

Algaefix, 4 oz., 4 FZ

Aquarium Pharmaceuticals AlgaefixAquarium Pharmaceuticals Algaefix is a revolutionary product specially developed to control many types of algae in freshwater aquariums containing live fish and plants. Algaefix effectively controls green water algae...

Petco.com

$9.48

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