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  • Ammonia Alert Seachem

    SeaChem
    Original price $12.99 - Original price $12.99
    Original price
    $12.99
    $12.99 - $12.99
    Current price $12.99
    In stock

    Ammonia Alert® is an innovative color device for continuously detecting and monitoring toxic free ammonia. A sensor changes reversibly from yello...

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    Original price $12.99 - Original price $12.99
    Original price
    $12.99
    $12.99 - $12.99
    Current price $12.99
  • HI755-26 | HI772-26 | Alkalinity Checker Reagent (25 Tests) | Hanna Instruments

    Hanna Instruments
    Original price $15.99 - Original price $15.99
    Original price
    $15.99
    $15.99 - $15.99
    Current price $15.99
    Low stock

    This reagent works with both the 755 & 772 Hanna checker.   Extreme Accuracy. Easy to Test in 4 Steps - Zero the Checker, Add a regent to you...

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    Original price $15.99 - Original price $15.99
    Original price
    $15.99
    $15.99 - $15.99
    Current price $15.99
  • Hanna Nitrate HR Reagent (25 Tests) HI782-25 | Hanna Instruments

    Hanna Instruments
    Original price $18.99 - Original price $18.99
    Original price
    $18.99
    $18.99 - $18.99
    Current price $18.99
    Low stock

    The HI782-25 are the replacement reagents for the HI782 Marine Nitrate High Range Checker® HC. These high-quality reagents are manufactured in ou...

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    Original price $18.99 - Original price $18.99
    Original price
    $18.99
    $18.99 - $18.99
    Current price $18.99
  • Digital Aquarium Thermometer

    Aquarium elements
    Original price $12.99 - Original price $12.99
    Original price
    $12.99
    $12.99 - $12.99
    Current price $12.99
    In stock

    The Coralife Digital Thermometer features an easy to read digital display with temperature in either Fahrenheit or Celsius depending on your choic...

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    Original price $12.99 - Original price $12.99
    Original price
    $12.99
    $12.99 - $12.99
    Current price $12.99
  • Hanna Marine Nitrate High Range Checker | PPM | Hanna Instruments

    Hanna Instruments
    Original price $64.99 - Original price $64.99
    Original price
    $64.99
    $64.99 - $64.99
    Current price $64.99
    Low stock

    The HI782 Marine Nitrate High Range Colorimeter is specifically designed to quickly and accurately determine high levels of nitrate for saltwater ...

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    Original price $64.99 - Original price $64.99
    Original price
    $64.99
    $64.99 - $64.99
    Current price $64.99
  • Nitrate | NO3 Test Kit | Salifert

    Salifert
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $18.99
    $18.99 - $18.99
    Current price $18.99
    Low stock

    A too high nitrate concentration can result in unwanted algae-growth and these might irritate corals in their neighborhood. Nitrate as such also re...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $18.99
    $18.99 - $18.99
    Current price $18.99
  • Phosphate Ultra Low Range Checker® HI774 HC Reagents (25 Tests)

    Hanna Instruments
    Original price $15.99 - Original price $15.99
    Original price
    $15.99
    $15.99 - $15.99
    Current price $15.99
    Low stock

    The HI774-25 are the replacement reagents for the HI774 Phosphate Ultra Low Range Checker® HC. These high-quality reagents are manufactured in ou...

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    Original price $15.99 - Original price $15.99
    Original price
    $15.99
    $15.99 - $15.99
    Current price $15.99
  • Checker® pH Tester with 0.1 pH Resolution | Hanna Instruments

    Hanna Instruments
    Original price $40.99 - Original price $40.99
    Original price
    $40.99
    $40.99 - $40.99
    Current price $40.99
    Out of stock

      Designed to bring simplicity to pH testing during the any process, the HI98103 Checker® pH Tester is designed for direct measurement. A repla...

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    Original price $40.99 - Original price $40.99
    Original price
    $40.99
    $40.99 - $40.99
    Current price $40.99
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  • Hanna Saltwater Alkalinity (dKH) Checker | Hanna Instruments

    Hanna Instruments
    Original price $64.99 - Original price $64.99
    Original price
    $64.99
    $64.99 - $64.99
    Current price $64.99
    Low stock

    The Hanna Marine Alkalinity (dKH) Checker® bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits...

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    Original price $64.99 - Original price $64.99
    Original price
    $64.99
    $64.99 - $64.99
    Current price $64.99
  • Aquarium Elements Saltwater Refractometer

    Aquarium Elements
    Original price $39.99 - Original price $39.99
    Original price $39.99
    $39.99
    $39.99 - $39.99
    Current price $39.99
    Low stock

    This portable refractometer is used for determining the salinity of various solutions. It has a rubber grip to prevent your body temperature from ...

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    Original price $39.99 - Original price $39.99
    Original price $39.99
    $39.99
    $39.99 - $39.99
    Current price $39.99
  • Hanna ULR Phosphate Colorimeter Checker - HI774 | PPM | Hanna Instruments

    Hanna Instruments
    Original price $64.99 - Original price $64.99
    Original price
    $64.99
    $64.99 - $64.99
    Current price $64.99
    Low stock

    The HI774 Ultra Low Range Phosphate Checker® HC (Handheld Colorimeter) is a cost-effective way to measure phosphate in marine systems, including r...

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    Original price $64.99 - Original price $64.99
    Original price
    $64.99
    $64.99 - $64.99
    Current price $64.99
  • Magnesium | Test Kit | Salifert

    Salifert
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $21.99
    $21.99 - $21.99
    Current price $21.99
    Out of stock

    Magnesium is present in NSW in a fairly high concentration (1300 - 1400 mg/L). Magnesium is an essential part of chlorophyll, which is necessary fo...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $21.99
    $21.99 - $21.99
    Current price $21.99
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  • Carbonate Hardness & Alkalinity (KH/ ALK) Test Kit | Salifert

    Salifert
    Original price $19.99 - Original price $19.99
    Original price
    $19.99
    $19.99 - $19.99
    Current price $19.99
    Low stock

    Calcium alone cannot form the skeletal material of corals and allow calcareous algae to grow. Some other substances are needed as well. A few othe...

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    Original price $19.99 - Original price $19.99
    Original price
    $19.99
    $19.99 - $19.99
    Current price $19.99
  • Hanna Calcium Reagent (25 Tests) HI758-26| Hanna Instruments

    Hanna Instruments
    Original price $28.99 - Original price $28.99
    Original price
    $28.99
    $28.99 - $28.99
    Current price $28.99
    Low stock

    Extreme Accuracy. Easy to Test in 4 Steps - Zero the Checker, Add a regent to your water sample, Insert the Vile in the Checker, Read the Numbered...

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    Original price $28.99 - Original price $28.99
    Original price
    $28.99
    $28.99 - $28.99
    Current price $28.99
  • Smart Temp Aquarium Thermometer | JW Aquatics

    Coralife Digital
    Original price $10.99 - Original price $10.99
    Original price
    $10.99
    $10.99 - $10.99
    Current price $10.99
    In stock

    NEW SmartTemp Thermometer. This unique design combines a thermometer with a magnet. The Thermometer goes on the inside of the tank and the magnet ...

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    Original price $10.99 - Original price $10.99
    Original price
    $10.99
    $10.99 - $10.99
    Current price $10.99
  • Reef ICP Test | 37 Elements | Fauna Marin

    Fauna Marin
    Original price $25.99 - Original price $25.99
    Original price
    $25.99
    $25.99 - $25.99
    Current price $25.99
    Low stock

    Analyze the Most Important Macro- and Trace Elements in Reef Aquariums! The Fauna Marin Reef ICP Test gives a quick, accurate, and easy overview o...

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    Original price $25.99 - Original price $25.99
    Original price
    $25.99
    $25.99 - $25.99
    Current price $25.99
  • Hanna Marine Calcium Checker | PPM | Hanna Instruments

    Hanna Instruments
    Original price $64.99 - Original price $64.99
    Original price
    $64.99
    $64.99 - $64.99
    Current price $64.99
    Low stock

    Extreme Accuracy. Easy to Test in 4 Steps - Zero the Checker, Add a regent to your water sample, Insert the Vile in the Checker, Read the Numbere...

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    Original price $64.99 - Original price $64.99
    Original price
    $64.99
    $64.99 - $64.99
    Current price $64.99
  • Phosphate (PO4) | Test Kit | Salifert

    Salifert
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $18.99
    $18.99 - $18.99
    Current price $18.99
    Out of stock

    Phosphate also blocks or retards the growth of corals and calcareous algae. One of the scientific studies shows that a phosphate concentration high...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $18.99
    $18.99 - $18.99
    Current price $18.99
    Sold out
  • Calcium | Test Kit | Salifert

    Salifert
    Original price $19.99 - Original price $19.99
    Original price
    $19.99
    $19.99 - $19.99
    Current price $19.99
    Low stock

    Salifert test kits are the epitome of accuracy and precision. Their wide range of available tests have all been designed to detect the smallest tra...

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    Original price $19.99 - Original price $19.99
    Original price
    $19.99
    $19.99 - $19.99
    Current price $19.99
  • Ammonia (NH3) Test Kit | Salifert

    Salifert
    Original price $13.99 - Original price $13.99
    Original price $13.99
    $13.99
    $13.99 - $13.99
    Current price $13.99
    Out of stock

    For Fresh and Saltwater Ammonia and ammonium are substances which should be converted rapidly into nitrite followed by nitrate and nitrogen gas.If ...

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    Original price $13.99 - Original price $13.99
    Original price $13.99
    $13.99
    $13.99 - $13.99
    Current price $13.99
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  • HI713-25 Phosphate LR Checker Reagent (25 Tests) | Hanna Instruments

    Hanna Instruments
    Original price $15.99 - Original price $15.99
    Original price
    $15.99
    $15.99 - $15.99
    Current price $15.99
    Out of stock

    The HI713-25 are the replacement reagents for the HI713 Phosphate Low Range Checker® HC. These high-quality reagents are manufactured in our stat...

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    Original price $15.99 - Original price $15.99
    Original price
    $15.99
    $15.99 - $15.99
    Current price $15.99
    Sold out
  • Copper Test Kit | Salifert

    Salifert
    Original price $15.99 - Original price $15.99
    Original price $15.99
    $15.99
    $15.99 - $15.99
    Current price $15.99
    Low stock

    This test can be used to measure any ionic copper in your source water or to monitor copper levels during parasite treatments. The test kit includ...

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    Original price $15.99 - Original price $15.99
    Original price $15.99
    $15.99
    $15.99 - $15.99
    Current price $15.99
  • Accuprobe Hydrometer | Hikari

    Hikari
    Original price $12.99 - Original price $12.99
    Original price
    $12.99
    $12.99 - $12.99
    Current price $12.99
    Low stock

    Accuprobe Hydrometer | Hikari  Aquarium: Thermometer & Hydrometer Wide Range Specific Gravity Meter For Marine Aquarium Use. Dry Hands d...

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    Original price $12.99 - Original price $12.99
    Original price
    $12.99
    $12.99 - $12.99
    Current price $12.99
  • Hanna Magnesium Checker | PPM | Hanna Instruments

    Hanna Instruments
    Original price $64.99 - Original price $64.99
    Original price
    $64.99
    $64.99 - $64.99
    Current price $64.99
    Low stock

    Hanna Instruments Marine Magnesium Checker® HC (HI783) is designed to accurately and quickly determine the magnesium level in marine (saltwater) s...

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    Original price $64.99 - Original price $64.99
    Original price
    $64.99
    $64.99 - $64.99
    Current price $64.99