New products are being added to the catalog, check often to see what we have!

Controllers & Testing

API Freshwater & Saltwater KH Test Kit
$ 6.99

API Freshwater & Saltwater KH Test Kit

API

The API® KH TEST KIT tests fresh or saltwater aquariums for carbonate hardness (KH), and helps monitor water quality and prevent invisible water p...

View full details
$ 6.99
API Freshwater GH & KH Test Kit General Carbonate Hardness 58  317163010587
$ 8.99

API Freshwater GH & KH Test Kit

API

When keeping freshwater fish and plants, the general hardness (GH) and carbonate hardness (KH) of aquarium water should match their natural habita...

View full details
$ 8.99
API Freshwater Master Test Kit
$ 22.99

API Freshwater Master Test Kit

API

The API® Freshwater Master Test Kit measures the 4 most important levels in freshwater aquariums quickly and accurately, including pH, high range ...

View full details
$ 22.99
API High pH Test Kit
$ 6.99

API High pH Test Kit

API

The API® pH TEST KIT monitors pH to maintain healthy freshwater conditions in your tank. pH control is imperative to prevent the harmful effects o...

View full details
$ 6.99
API High Range pH Test Kit 317163001271
$ 6.99

API High Range pH Test Kit

API

The API® HIGH RANGE pH TEST KIT measures pH changes in marine aquariums, aquariums with African Cichlids, and very alkaline tap water. The API HIG...

View full details
$ 6.99
API Nitrate Test Kit NO3 317163000182 FW SW Freshwater Saltwater
$ 10.99

API Nitrate Test Kit

API

High nitrate levels in your aquarium indicate a build-up of fish waste and organic compounds, resulting in poor water quality and an increase in a...

View full details
$ 10.99
API Reef Master Test Kit
$ 26.99

API Reef Master Test Kit

API

The API® Reef Master Test Kit test 4 key parameters – calcium, carbonate hardness, phosphate, and nitrate – to keep reef inhabitants healthy. Test...

View full details
$ 26.99
API Test Kit Saltwater Master 401M
$ 22.99

API Saltwater Master Test Kit

API

The API® Saltwater Master Test Kit measures the 4 most important saltwater parameters – pH, ammonia, nitrite, and nitrate – to enable easy testing...

View full details
$ 22.99
Instant Ocean Hydrometer
Save 19%
$ 15.99
$ 12.99

Instant Ocean Hydrometer

Instant Ocean

  Accurate, reliable water test equipment is absolutely vital to creating and sustaining a healthy, successful marine environment. Easy to read a...

View full details
$ 15.99
$ 12.99
Save 19%
Salifert Ammonia Test Kit
$ 13.99

Salifert Ammonia Test Kit

Salifert

The Salifert Ammonia (NH3 profi Test) Test Kit is a straightforward, accurate testing kit for saltwater environments that measures the sum of toxi...

View full details
$ 13.99
Salifert Calcium Test Kit
$ 18.99

Salifert Calcium Test Kit

Salifert

The Salifert Calcium Test Kit is an accurate testing kit for saltwater environments. It measures the level of calcium, an important component to t...

View full details
$ 18.99
Salifert Magnesium Test Kit
$ 19.99

Salifert Magnesium Test Kit

Salifert

The Salifert Magnesium Test Kit measures the magnesium content in saltwater aquariums. In nature, magnesium is present in rather high concentratio...

View full details
$ 19.99
Salifert Nitrate Test Kit
$ 17.99

Salifert Nitrate Test Kit

Salifert

The Salifert Nitrate Test Kit measures the extremely hazardous nitrate levels that build up in spaces which have been deprived of oxygen. High nit...

View full details
$ 17.99
Salifert Nitrite Test Kit
$ 11.99

Salifert Nitrite Test Kit

Salifert

The Salifert Nitrite Test Kit measures the extremely hazardous nitrite levels that build up in aquariums due an interference in the nitrogen cycle...

View full details
$ 11.99
Salifert pH Test Kit
$ 10.99

Salifert pH Test Kit

Salifert

Salifert's pH Test Kit provides you with quick and precise test results for one of the most crucial parameters to measure in your aquarium, pH. Th...

View full details
$ 10.99
Salifert Phosphate Test Kit
$ 19.99

Salifert Phosphate Test Kit

Salifert

Salifert's Phosphate Test Kit helps prevent problematic phosphate build-ups by allowing you to detect the problem early. Too much phosphate in you...

View full details
$ 19.99
Seachem MultiTest Copper - 75 Tests
$ 15.99

Seachem MultiTest Copper - 75 Tests

Seachem

MultiTest™ Copper Measures all types of copper to less than 0.01 mg/L Multi-cavity plate for simultaneous testing of up to 6 tests at the same ti...

View full details
$ 15.99
000116096805 0968 Seachem Iron Test kit MultiTest Multi test
$ 15.99

Seachem MultiTest Iron - 75 Tests

Seachem

MultiTest™ Iron Measures iron to less than 0.05 mg/L Multi-cavity plate for simultaneous testing of up to 6 tests at the same time Includes ref...

View full details
$ 15.99
Seachem MultiTest Phosphate - 75 Tests
$ 15.99

Seachem MultiTest Phosphate - 75 Tests

Seachem

MultiTest™ Phosphate Measures inorganic phosphate to less than 0.05 mg/L Multi-cavity plate for simultaneous testing of up to 6 tests at the sam...

View full details
$ 15.99
Seachem MultiTest: Silicate
$ 15.99

Seachem MultiTest: Silicate

Seachem

Description This kit measures silicates to less than 0.5 mg/L in marine or freshwater. MultiTest® Silicate performs over 75 tests and contains a re...

View full details
$ 15.99
Seachem Reef Status Calcium Test Kit
$ 29.99

Seachem Reef Status Calcium Test Kit

Seachem

Description This kit is capable of at least 150 calcium determinations and is designed specifically for seawater. The test is based on titration of...

View full details
$ 29.99
Seachem Reef Status Magnesium Test Kit
$ 39.99

Seachem Reef Status Magnesium Test Kit

Seachem

Description This kit is capable of at least 75 tests for magnesium. It is designed specifically for seawater. The test is based on titration of mag...

View full details
$ 39.99
Seachem Reef Status Strontium Test Kit
$ 39.99

Seachem Reef Status Strontium Test Kit

Seachem

Description The first and only 10 minute strontium test! The test involves separation of strontium from the sample by a highly selective extraction...

View full details
$ 39.99
Seachem Test Ammonia Alert Badge
$ 9.99

Seachem Test Ammonia Alert Badge

Seachem

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

View full details
$ 9.99
Sera Aqua-Test Box Master Test Kit
Save 18%
$ 109.99
$ 89.99

Sera Aqua-Test Box Master Test Kit

Sera

Water testing for experienced Freshwater and Pond aquarists Experienced aquarists check their aquarium water regularly. This allows taking me...

View full details
$ 109.99
$ 89.99
Save 18%
Sera Marin Floating Glass Hydrometer
Save 19%
$ 15.99
$ 12.99

Sera Marin Floating Glass Hydrometer

Sera

  For the uncomplicated monitoring of marine water density. The salinity (salt contents) can be deduced from the measured density. Since the sali...

View full details
$ 15.99
$ 12.99
Save 19%