For better presentation of content, we recommend opening on a different browser. We recommend using either Google Chrome or Firefox.

Products

Featured Products

STRESS COAT™
  • STRESS COAT™

  • API® STRESS COAT water conditioner makes tap water safe for fish by removing chlorine, chloramines and heavy metals from tap water, and contains the healing po...
  • Learn More >
MELAFIX™
  • MELAFIX™

  • API® MELAFIX fish remedy is an all-natural antibacterial treatment that works to treat infections in fish. Common bacterial infections are open wounds and abra...
  • Learn More >
FRESHWATER MASTER TEST KIT
  • FRESHWATER MASTER TEST KIT

  • The API® FRESHWATER MASTER TEST KIT measures the 4 most important levels in freshwater aquariums quickly and accurately, including pH, high range pH, ammonia, ...
  • Learn More >
PREVENT ALGAE
  • PREVENT ALGAE

  • API® PREVENT ALGAE helps to prevent algae and keep the aquarium clean by lowering levels of phosphate - a food source for algae....
  • Learn More >

At API brand, we understand the rewards and relaxation of fishkeeping because we have a passion for fish, too. For over 50 years, API brand has developed premium solutions with proven and effective results for your family and ours.

Browse our full range of aquatics products, from water conditioners and food to testing and fish remedies, to help you maintain a healthier, clearer aquarium or pond with the best conditions for your fish.

Browse By Category

All Products

AMMONIA TEST STRIPS

AMMONIA TEST STRIPS

pH TEST STRIPS

pH TEST STRIPS

POND 5 IN 1 TEST STRIPS

POND 5 IN 1 TEST STRIPS

POND MASTER TEST KIT

POND MASTER TEST KIT

POND-ZYME™ SLUDGE DESTROYER™

POND-ZYME™ SLUDGE DESTROYER™

POND MELAFIX™

POND MELAFIX™

POND SALT

POND SALT

POND STRESS COAT™

POND STRESS COAT™

By providing your email address, you confirm that you are over 16 years old, and would like to be kept up to date with exciting promotions and new product developments from Mars Petcare and its affiliatesOpens in new window.

You may change these preferences at any time by clicking the unsubscribe link in any communication you receive.

From time to time, we may use your data for research to enhance our product and service offerings. You can find out how Mars Petcare and its affiliatesOpens in new window collects and processes your data, contact us with privacy questions, and exercise your personal data rights via the Mars Privacy StatementOpens in new window.