Skip to content
Subscribe and Save 6% Forever on Future Orders!
Subscribe and Save 6% Forever on Future Orders!

API

  • API Ammonia Test Kit Fresh & Salt Water

    API
    Original price $21.67
    Original price $21.67 - Original price $21.67
    Original price $21.67
    Current price $15.48
    $15.48 - $15.48
    Current price $15.48

    The API Ammonia Test Kit measures ammonia levels in both fresh and saltwater aquariums. Ammonia, the number one killer of tropical fish, is continu...

    View full details
    Original price $21.67
    Original price $21.67 - Original price $21.67
    Original price $21.67
    Current price $15.48
    $15.48 - $15.48
    Current price $15.48
    Sold out
  • API Calcium Test Kit

    API
    Original price $19.57
    Original price $19.57 - Original price $19.57
    Original price $19.57
    Current price $13.98
    $13.98 - $13.98
    Current price $13.98

    Aquarium Pharmaceuticals Calcium Test Kit Liquid allows you to easily and accurately measure the calcium level and maintain a healthy aquarium.   ...

    View full details
    Original price $19.57
    Original price $19.57 - Original price $19.57
    Original price $19.57
    Current price $13.98
    $13.98 - $13.98
    Current price $13.98
    Save $5.59 Save $0.00
  • API Carbonate Test Kit - Fresh & Saltwater

    API
    Original price $12.57
    Original price $12.57 - Original price $12.57
    Original price $12.57
    Current price $8.98
    $8.98 - $8.98
    Current price $8.98

    Aquarium Pharmaceuticals Fresh/Salt Water Carbonate Test Kit measures carbonate hardness, the measure of carbonate and bicarbonate concentrations i...

    View full details
    Original price $12.57
    Original price $12.57 - Original price $12.57
    Original price $12.57
    Current price $8.98
    $8.98 - $8.98
    Current price $8.98
    Save $3.59 Save $0.00
  • API Copper Test Kit

    API
    Original price $17.47
    Original price $17.47 - Original price $17.47
    Original price $17.47
    Current price $12.48
    $12.48 - $12.48
    Current price $12.48

    Aquarium Pharmaceuticals' Copper Test Kit tests copper levels in water from 0 to 4 ppm, and measures both free and chelated copper. Always monitor ...

    View full details
    Original price $17.47
    Original price $17.47 - Original price $17.47
    Original price $17.47
    Current price $12.48
    $12.48 - $12.48
    Current price $12.48
    Sold out
  • API Freshwater Hardness GH & KH Test Kit

    API
    Original price $16.77
    Original price $16.77 - Original price $16.77
    Original price $16.77
    Current price $11.98
    $11.98 - $11.98
    Current price $11.98

    The API Freshwater Hardness GH and KH Test Kit tests tap water and freshwater aquariums for general hardness (GH) and carbonate hardness (KH). Keep...

    View full details
    Original price $16.77
    Original price $16.77 - Original price $16.77
    Original price $16.77
    Current price $11.98
    $11.98 - $11.98
    Current price $11.98
    Save $4.79 Save $0.00
  • API Freshwater Master Test Kit

    API
    Original price $50.37
    Original price $50.37 - Original price $50.37
    Original price $50.37
    Current price $35.98
    $35.98 - $35.98
    Current price $35.98

    API Freshwater Master Test Kit is a complete test kit for testing tap and aquarium water. Tests five different potentially dangerous water conditio...

    View full details
    Original price $50.37
    Original price $50.37 - Original price $50.37
    Original price $50.37
    Current price $35.98
    $35.98 - $35.98
    Current price $35.98
    Save $14.39 Save $0.00
  • API Nitrate Test Kit Fresh & Salt Water

    API
    Original price $19.57
    Original price $19.57 - Original price $19.57
    Original price $19.57
    Current price $13.98
    $13.98 - $13.98
    Current price $13.98

    Nitrate buildup in aquariums is often an indicator of declining water quality. High levels of nitrate are frequently associated with poor fish heal...

    View full details
    Original price $19.57
    Original price $19.57 - Original price $19.57
    Original price $19.57
    Current price $13.98
    $13.98 - $13.98
    Current price $13.98
    Sold out
  • API Nitrite NO2 Test Kit FW & SW

    API
    Original price $16.77
    Original price $16.77 - Original price $16.77
    Original price $16.77
    Current price $11.98
    $11.98 - $11.98
    Current price $11.98

    Nitrite NO2 - Test Kit for Fresh Water / Salt Water monitorS nitrite to help prevent fish loss. Fast, accurate and easy-to-use. This Fresh Water Ni...

    View full details
    Original price $16.77
    Original price $16.77 - Original price $16.77
    Original price $16.77
    Current price $11.98
    $11.98 - $11.98
    Current price $11.98
    Save $4.79 Save $0.00
  • API pH High Range Test Kit FW & SW

    API
    Original price $13.27
    Original price $13.27 - Original price $13.27
    Original price $13.27
    Current price $9.48
    $9.48 - $9.48
    Current price $9.48

    Aquarium Pharmaceuticals' High Range pH Test Kit helps you ensure a healthy environment for your fish in both fresh and saltwater aquariums. Proper...

    View full details
    Original price $13.27
    Original price $13.27 - Original price $13.27
    Original price $13.27
    Current price $9.48
    $9.48 - $9.48
    Current price $9.48
    Save $3.79 Save $0.00
  • API pH Test & Adjuster Kit

    API
    Original price $18.17
    Original price $18.17 - Original price $18.17
    Original price $18.17
    Current price $12.98
    $12.98 - $12.98
    Current price $12.98

    Aquarium Pharmaceuticals pH Test and Adjuster Kit monitors your aquarium water pH with extreme accuracy, and includes API pH UP and pH DOWN to perf...

    View full details
    Original price $18.17
    Original price $18.17 - Original price $18.17
    Original price $18.17
    Current price $12.98
    $12.98 - $12.98
    Current price $12.98
    Save $5.19 Save $0.00
  • API Phosphate Test Kit

    API
    Original price $20.97
    Original price $20.97 - Original price $20.97
    Original price $20.97
    Current price $14.98
    $14.98 - $14.98
    Current price $14.98

    Aquarium Pharmaceuticals Phosphate Test Kit allows you to easily and accurately measure the phosphate level and maintain a healthy aquarium or pond...

    View full details
    Original price $20.97
    Original price $20.97 - Original price $20.97
    Original price $20.97
    Current price $14.98
    $14.98 - $14.98
    Current price $14.98
    Save $5.99 Save $0.00
  • API Pond Master Test Kit

    API
    Original price $48.97
    Original price $48.97 - Original price $48.97
    Original price $48.97
    Current price $34.98
    $34.98 - $34.98
    Current price $34.98

    The API Pond Master Test Kit is a complete kit for testing tap water and pond water. This fast, easy, and accurate kit measures pH, ammonia, nitrit...

    View full details
    Original price $48.97
    Original price $48.97 - Original price $48.97
    Original price $48.97
    Current price $34.98
    $34.98 - $34.98
    Current price $34.98
    Sold out
  • API Reef Master Test Kit

    API
    Original price $51.08
    Original price $51.08 - Original price $51.08
    Original price $51.08
    Current price $36.48
    $36.48 - $36.48
    Current price $36.48

    The API Marine Reef Master Test Kit tests the most important aquarium levels. Tests Calcium, Carbonate hardness, phosphate, and Nitrate levels quic...

    View full details
    Original price $51.08
    Original price $51.08 - Original price $51.08
    Original price $51.08
    Current price $36.48
    $36.48 - $36.48
    Current price $36.48
    Save $14.60 Save $0.00
  • API Saltwater Master Test Kit

    API
    Original price $50.37
    Original price $50.37 - Original price $50.37
    Original price $50.37
    Current price $35.98
    $35.98 - $35.98
    Current price $35.98

    The API Saltwater Master Test Kit for marine aquariums contains everything you need to measure the most important levels in your water with scienti...

    View full details
    Original price $50.37
    Original price $50.37 - Original price $50.37
    Original price $50.37
    Current price $35.98
    $35.98 - $35.98
    Current price $35.98
    Save $14.39 Save $0.00