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Hanna Instruments

HI98319 Salinity & Temperature Tester - Hanna

$69.00
We are pleased to announce our NEW HI98319 waterproof salinity and temperature tester! Waterproof and floats! Includes 4x of the Salinity Calibration Fluid Packets. Automatic Calibration – A 35.00 ppt solution is used for calibration and...
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Salifert

Nitrate (NO3) Test Kit - Salifert

$17.37
A too high nitrate concentration can result in unwanted algae-growth and these might irritate corals in their neighborhood. Nitrate as such also retards coral growth. The nitrate concentration in a proper functioning reef aquarium should...
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Salifert

Magnesium (MG) Test Kit - Salifert

$19.61
Magnesium is present in NSW in a fairly high concentration (1300 - 1400 mg/L). Magnesium is an essential part of chlorophyll, which is necessary for photosynthesis. Without photosynthesis plants, including algae and the corals, which we usually have in...
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All Misc Brands

Salinity Refractometer w/ Calibration Fluid - Generic

$29.95
It is designed for testing the concentration of salt water and brine and used for quality control in research and clinical laboratories and marine industry. Its scale provides a direct reading of the specific gravity and concentration (part per Thousand)...
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Salifert

Calcium (Ca) Ultra Test Kit - Salifert

$18.81
Calcium is a major constituent of calcareous algae, skeletal material of hard corals and the skeletal needles of soft/leather corals. Calcium also fulfills many biological functions.Quite often a too low calcium concentration retards coral and calcareous...
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Red Sea

MCP Test Kit Marine Master Care - Red Sea

$59.99
Easy-to-use tests for the accurate monitoring of all of the important parameters during the biological maturation of marine and reef aquariums NH3/NH4 | NO3 | NO2 | pH | KH Red Sea Marine Care Test Kit is Complete multi-test pack including all of...
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American Marine

PINPOINT pH Probe - American Marine

$37.99
The PINPOINT® pH Electrode equals and exceeds lab quality by both specif cation and design.  The PINPOINT® pH Electrode has been designed as the most rugged, precise and full-featured probe offered to both the clinical lab and aquaculture...
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American Marine

PINPOINT ORP Monitor - American Marine

$114.99
PINPOINT® ORP Monitor will measure the ORP (oxidation-reduction potential, or REDOX) of your system. It is popular with those who use ozone gas or potassium permanganate as an artificial oxidation agent in fresh or saltwater. It is also popular for...
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American Marine

PINPOINT pH 7.0 Calibration Fluid (5 Pack)

$5.95
PINPOINT® High-Precision pH Calibration Fluids come in plastic envelope packets and are extremely accurate and field portable. Each packet contains ample fluid for calibration (about 30 ml). There is a free sample of these included with each...
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Out of Stock

Aquaforest

Component 1+, 2+, 3+ Package (3 x 5L Bottles) - Aquaforest

$59.99
Chemical composition of Component 1+2+3+ is based on the method developed by H. Balling. The formula has been fine tuned in our lab and enriched with trace elements that are fundamental for maintaining marine aquarium organisms in good form. As a result...
Out of stock

Salifert

Phosphate (PO4) Test Kit - Salifert

$19.61
Phosphate also blocks or retards the growth of corals and calcareous algae. One of the scientific studies shows that a phosphate concentration higher than 0.05 mg/L decreases the growth of calcareous algae by 90%! Washing fish food, which is a rich...
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Seachem

Ammonia Alert - Seachem

$7.35 $8.75
Ammonia Alert™ is an innovative color device for continuously detecting and monitoring toxic free ammonia. A sensor changes reversibly from yellow to green to blue, relative to the ammonia concentration. No test kits, chemicals, or procedures are...
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Out of Stock

Milwaukee Instruments

Digital Seawater Refractometer MA887 - Milwaukee

$114.00
This refractometer does not come with a case or battery. The new Milwaukee MA887 Seawater Digital Refractometer encompasses 3 different types of user selected scales for the measurement of seawater providing for a much more precise evaluation. Each...
Out of stock

API

Calcium Test Kit - API

$9.99
Calcium Test Kit Calcium is one of the most important elements in a reef aquarium. Reef invertebrates such as corals, crustaceans, mollusks and even some types of encrusting algae need calcium to grow and remain healthy. Over time, calcium levels drop...
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JW Pet

Smart Temp Magnetic Thermometer - JW Pet

$5.95
JW Pet Company Smart temp Thermometer Aquarium Accessory Large : JW Fusion Smart Temp Thermometer features a unique magnetic system that securely holds the thermometer in place inside of the aquarium with a magnet on the outside of the glass. It ranges...
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API

Phosphate Test Kit (150 Tests) - API

$9.99
Phosphate can enter your aquarium through tap water, fish waste, and decaying organics such as uneaten food and dead algae.   Excess phosphate contributes to unsightly algae blooms.   This kit tests phosphate levels from 0 to 10 ppm in...
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American Marine

PINPOINT pH 10.0 Calibration Fluid (5 Pack)

$5.95
PINPOINT® High-Precision pH Calibration Fluids come in plastic envelope packets and are extremely accurate and field portable. Each packet contains ample fluid for calibration (about 30 ml). There is a free sample of these included with each...
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Coralife

Digital Thermometer - Coralife

$9.99
Attaches to aquarium via small suction cup    3 foot long temperature probe for large size aquariums    Battery included    Ideal for aquariums and terrariums    Readings to 0.1-degrees...
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Blue Life USA

Phosphate Rx (1 oz) - Blue Life USA

$26.30
Phosphate Rx is an amazingly simple and effective product that has revolutionized the way phosphates are removed from saltwater and freshwater aquariums. When added, the formula rapidly binds to phosphate molecules making them inactive and easily...
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Red Sea

Calcium Pro Test Refill - Red Sea

$17.99
Refill contains all reagents used in the Red Sea calcium test kitCalcium, an essential component in the building of coral skeletons, is constantly depleted from the aquarium and needs to be monitored on a regular basis. Calcium Pro is an advanced calcium...
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Out of Stock

Neptune Systems

DOS Replacement Pump Head Cap - Neptune Systems

$29.95
DŌS Replacement Pump Head Cap for your Neptune Systems DŌS module.  Complete assembly includes cover, peri-tube, fittings and roller wheel. Neptune Systems recommends that these be replaced approximately every 700 hours of pump run time.
Out of stock

Red Sea

KH/Alkalinity Pro Test Refill - Red Sea

$17.99
Reagent alkalinity pro refill test kit is an advanced titration test Measuring the level of buffers in reef aquarium to an exceptionally high accuracy of 0.05 meq/l (0.14 dkh) This test refill replenishes KH/alkalinity pro test kit with sufficient...
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API

Nitrate Test Kit (90 Tests) - API

$9.99
The API Nitrate Test Kit will allow you to accurately and easily measure the nitrate level and provides steps to remove it. Kit includes 2 liquid droppers, instructions on how to test and correct water conditions, a glass test tube, and 2 colors charts...
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Salifert

Ammonia (NH3) Test Kit - Salifert

$13.99
For Fresh and Saltwater Ammonia and ammonium are substances which should be converted rapidly into nitrite followed by nitrate and nitrogen gas.If this does not happen then the aquarium is not fully cycled or biological processes are not proceeding as...
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Salifert

Salifert Master Reef Testing Combo Kit - Salifert

$89.99
Six Salifert Professional Test Kits Includes Calcium, Nitrate, Phosphate, pH, Alkalinity & Magnesium Includes all the Core parameters of any Saltwater Aquarium/Marine Reef Tank Salifert Nitrate Test Kit - 50 Tests, Salifert Calcium Test...
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Salifert

pH Test Kit - Salifert

$10.92
If the pH is too low then the cause may be a too low alkalinity and/or insufficient aeration. A low pH can be corrected by improving aeration and by increasing the alkalinity to NSW (Natural seawater) value or upto approx 25% above NSW levels. The...
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Red Sea

Reef Foundation B - ALK (1000 ml) Liquid - Red Sea

$21.99
The foundation elementsA successful coral reef aquarium depends on how well you maintain the water parameters which are the key to a stable coral environment.All of the elements found in natural seawater play a role in providing optimal water parameters,...
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Red Sea

Magnesium Pro Test Refill - Red Sea

$17.99
Red Sea’s Magnesium Pro Test Kit is an advanced titration test, measuring the level of magnesium in your reef aquarium to an exceptionally high accuracy of 20 ppm. The Magnesium Pro Test test kit enables the accurate dosing of Red Sea’s...
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Out of Stock

ESV

B-Ionic Calcium Buffer System (64 oz) - ESV

$27.99
Bionic Calcium Buffer is the original, unique, easy to use, two-component liquid supplement system. When using equal volumes of each component, the aquarist can easily maintain calcium and alkalinity levels with no mixing powders, disruption of ionic...
Out of stock