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Test Equipment

Aquarium Test Equipment

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

Phosphate Ultra Low Range Checker® HI774 HC Reagents (25 Tests)

Hanna Instruments
Original price $17.99 - Original price $17.99
Original price
$17.99
$17.99 - $17.99
Current price $17.99
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 $17.99 - Original price $17.99
Original price
$17.99
$17.99 - $17.99
Current price $17.99

Hanna Nitrate HR Reagent (25 Tests) HI782-25 | Hanna Instruments

Hanna Instruments
Original price $24.99 - Original price $24.99
Original price
$24.99
$24.99 - $24.99
Current price $24.99
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 $24.99 - Original price $24.99
Original price
$24.99
$24.99 - $24.99
Current price $24.99

Hanna Marine Nitrate High Range Checker | PPM | Hanna Instruments

Hanna Instruments
Original price $67.99 - Original price $67.99
Original price
$67.99
$67.99 - $67.99
Current price $67.99
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 $67.99 - Original price $67.99
Original price
$67.99
$67.99 - $67.99
Current price $67.99

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

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 Calcium Reagent (25 Tests) HI758-26 | Hanna Instruments

Hanna Instruments
Original price $29.99 - Original price $29.99
Original price
$29.99
$29.99 - $29.99
Current price $29.99
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 $29.99 - Original price $29.99
Original price
$29.99
$29.99 - $29.99
Current price $29.99

Checker® pH Tester with 0.1 pH Resolution | Hanna Instruments

Hanna Instruments
Original price $44.99 - Original price $44.99
Original price
$44.99
$44.99 - $44.99
Current price $44.99
Low 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 $44.99 - Original price $44.99
Original price
$44.99
$44.99 - $44.99
Current price $44.99

Hanna ULR Phosphate Colorimeter Checker - HI774 | PPM | Hanna Instruments

Hanna Instruments
Original price $67.99 - Original price $67.99
Original price
$67.99
$67.99 - $67.99
Current price $67.99
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 $67.99 - Original price $67.99
Original price
$67.99
$67.99 - $67.99
Current price $67.99

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

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
Low 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

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
Low 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

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 Marine Calcium Checker | PPM | Hanna Instruments

Hanna Instruments
Original price $67.99 - Original price $67.99
Original price
$67.99
$67.99 - $67.99
Current price $67.99
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 Number...

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Original price $67.99 - Original price $67.99
Original price
$67.99
$67.99 - $67.99
Current price $67.99

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

HI713-25 Phosphate LR Checker Reagent (25 Tests) | Hanna Instruments

Hanna Instruments
Original price $17.99 - Original price $17.99
Original price
$17.99
$17.99 - $17.99
Current price $17.99
Low 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 $17.99 - Original price $17.99
Original price
$17.99
$17.99 - $17.99
Current price $17.99

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

Silicate | 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

High levels of silicate can lead to diatom blooms. Some tap water and even RO water may have silicates and should be monitored with a Silicate Test...

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Original price $19.99 - Original price $19.99
Original price
$19.99
$19.99 - $19.99
Current price $19.99

35 ppt Salinity Calibration Solution Sachet | Hanna Instruments

Hanna Instruments
Original price $2.99 - Original price $2.99
Original price
$2.99
$2.99 - $2.99
Current price $2.99
In stock

For HI98319 Salinity Tester use only. Not for use with refractometers. HI70024P is a premium quality 35.00 ppt salinity calibration solution that...

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Original price $2.99 - Original price $2.99
Original price
$2.99
$2.99 - $2.99
Current price $2.99

Marine Magnesium Checker® Reagents (25 Tests) | Hanna Instruments

Hanna Instruments
Original price $24.99 - Original price $24.99
Original price
$24.99
$24.99 - $24.99
Current price $24.99
Low stock

  The HI783-25 are the replacement reagents for the Marine Magnesium Checker® HC - HI783. These high-quality reagents are manufactured in our state...

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Original price $24.99 - Original price $24.99
Original price
$24.99
$24.99 - $24.99
Current price $24.99

Hanna Copper HR Checker | PPM | Hanna Instruments

Hanna Instruments
Original price $67.99 - Original price $67.99
Original price
$67.99
$67.99 - $67.99
Current price $67.99
Low stock

Don't worry about the subjectivity of color charts, trust our handheld colorimeter for accurate measurements for your water testing. Get better ac...

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Original price $67.99 - Original price $67.99
Original price
$67.99
$67.99 - $67.99
Current price $67.99

Glass Cuvettes and Caps for Checker HC Colorimeters (2 pack)

Hanna Instruments
Original price $14.99 - Original price $14.99
Original price
$14.99
$14.99 - $14.99
Current price $14.99
Low stock

The HI731315 are spare glass cuvettes and plastic caps used with the HI7XX Checker® HC colorimeters. Each cuvette has a 10 ml level mark to measur...

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Original price $14.99 - Original price $14.99
Original price
$14.99
$14.99 - $14.99
Current price $14.99

PH | Test Kit | Salifert

Salifert
Original price $17.99 - Original price $17.99
Original price $17.99
$17.99
$17.99 - $17.99
Current price $17.99
Low stock

Salifert pH Profi-Test The pH value in a marine tank has a major impact on the growth of corals and calcareous algae and on many biological proce...

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Original price $17.99 - Original price $17.99
Original price $17.99
$17.99
$17.99 - $17.99
Current price $17.99