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API Aquarium Supplies

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Items 1-20 of 46

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  2. Online Member Sale
    API Freshwater Master Kit 5 In 1
    • 20
    API Freshwater Master Kit 5 In 1
    Member Sale
    Non-member: $97.99
    $78.39
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    Save $19.60
  3. API Bottom Feeder Shrimp Pellets 113g
    API Bottom Feeder Shrimp Pellets 113g
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    Our lowest price
    $16.79
    Save $4.20
    Regular Price
    Online price $20.99
  4. Online Member Sale
    API Ammonia NH3/NH4 Test Kit 130 Tests
    • 20
    API Ammonia NH3/NH4 Test Kit 130 Tests
    Member Sale
    Non-member: $37.99
    $30.39
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    Save $7.60
  6. Online Member Sale
    API Aquarium Salt 454g
    • 20
    API Aquarium Salt 454g
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    Non-member: $16.99
    $13.59
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    Save $3.40
  7. Online Member Sale
    API Accu-Clear 118mL
    • 20
    API Accu-Clear 118mL
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    Non-member: $19.99
    $15.99
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    Save $4.00
  8. Online Member Sale
    API Tap Water Conditioner 237ml
    • 20
    API Tap Water Conditioner 237ml
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    Non-member: $21.99
    $17.59
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    Save $4.40
  9. Online Member Sale
    API Root Tablets 10 Pack
    • 20
    API Root Tablets 10 Pack
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    Non-member: $29.99
    $23.99
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    Save $6.00
  10. Online Member Sale
    API pH Test & Adjuster Kit 250 Tests
    • 20
    API pH Test & Adjuster Kit 250 Tests
    Member Sale
    Non-member: $39.99
    $31.99
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    Save $8.00
  11. Online Member Sale
    API Quick Start - 473mL
    • 20
    API Quick Start - 473mL
    Member Sale
    Non-member: $59.99
    $47.99
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    Save $12.00
  12. Online Member Sale
    API Quick Start - 118ml
    • 20
    API Quick Start - 118ml
    Member Sale
    Non-member: $29.99
    $23.99
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    Save $6.00
  13. API Sinking Goldfish Pellets 113g
    API Sinking Goldfish Pellets 113g
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    Our lowest price
    $15.99
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    Online price $19.99
  14. API Tropical Aquarium Flake 31g
    API Tropical Aquarium Flake 31g
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    Our lowest price
    $11.19
    Save $2.80
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    Online price $13.99
  15. Online Member Sale
    API Tapwater Conditioner - 473ml
    • 20
    API Tapwater Conditioner - 473ml
    Member Sale
    Non-member: $35.99
    $28.79
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    Save $7.20
  16. Online Member Price
    API Quick Testing Strips 5 In 1 25 Tests
    • 20
    API Quick Testing Strips 5 In 1 25 Tests
    Member price
    Non-member: $44.99
    $35.99
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    Save $9.00
  17. API Vacation Pyramid Fish Feeder 14 Day
    API Vacation Pyramid Fish Feeder 14 Day
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    Our lowest price
    $11.99
    Save $3.00
    Regular Price
    Online price $14.99
  18. Online Member Sale
    API Algaefix - 237ml
    • 20
    API Algaefix - 237ml
    Member Sale
    Non-member: $35.99
    $28.79
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    Save $7.20
  19. API Algae Eater Fish Wafers 105g
    API Algae Eater Fish Wafers 105g
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    Our lowest price
    $17.59
    Save $4.40
    Regular Price
    Online price $21.99
  20. Online Member Sale
    API Leaf Zone - 237mL
    • 20
    API Leaf Zone - 237mL
    Member Sale
    Non-member: $25.99
    $20.79
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    Save $5.20

Items 1-20 of 46

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API aquarium products make life easier for fish owners. These aquarium treatments and testers make sure your pets have a clean, safe and healthy place to live, and you'll get to spend more time enjoying your aquarium without worrying about maintenance.

If you're setting up a new aquarium, API Quick Start formula includes everything you need to add fish straight away. You'll also find plenty of products to tackle any issue you may be having in an established aquarium, from boosting CO2 and balancing the pH to water treatments that make tap water safe and protect your fish from stress and injury.

API also offers pond care products to keep your garden pond clean and clear and a new range of turtle products. See all our API offers at Petbarn and browse our full range of aquariums and filters.