Hanna Checker - Calcium Colorimeter Ideal for salt water aquariums and coral reef tanks.Designed exclusively for saltwater aquariums, the HI-758 offers a quick, easy and highly accurate method of checking Calcium. For replacement reagents for Calcium Checker®HC use code HI-758-26 for...

pH of ocean surface water is normally 7.5.to 8.5 pH. Over the years however, acidification tendency is to decrease 0.1 to 0.2 pH units/century. Acidification is a consequence of carbon dioxide (CO₂) absorption in seawaters...

The HI-782 Marine Nitrate High Range Colorimeter is specifically designed to quickly and accurately determine high levels of nitrate for saltwater aquariums and marine applications. With a digital read out, there is no more struggling...

Hanna Checker - Phosphate ULR Colorimeter The Hanna Phosphate checker ULR is an awesome little tool that will give you accurate easy to read results.  If you have bad eyes or have a hard time with color change...

Make sure your marine tank or even a natural reef is in perfect health with the Hanna Reef Kit. This great professional kit includes: HI-772 Seawater/Marine Alkaline Checker®HC(dKh) HI-758 Marine Calcium Checker® HC HI-774 Marine...

Hanna Marine Master Photometer Kit HI-97115CProfessional multi-parameter photometer for marine aquariums and field use. The HI-97115C combines eight essential tests into one waterproof, wireless device. Ideal for monitoring coral reef health, fish systems, and precise...

The HI-98107 pHep® revolutionised the pH industry by providing non-technical personnel with a simple, inexpensive solution to accurate pH measurement. This pocket sized pH tester is used by millions of people around the world to...

Salinity Tester - digital Salinity tester  The waterproof HI98319 salinity and temperature tester is perfect for any saltwater aquarium. A more accurate alternative to refractometers, this tester uses conductivity to determine salinity levels of natural and artificial seawater. Ideal...

Hyvä otus jos altaassa on liikaa Asterina meritähtiä! Huom. Syö vain meritähtiä! Their highly specific diet is probably the most fascinating thing about this shrimp species. Harlequin shrimp only eat starfish and nothing else. Maybe...

Kasvatettu. The Harptail Blenny is an excellent candidate for a reef tank. It is a beautiful, deep golden-yellow with a shadow of green above the eye running under a jet-black dorsal fin. This Harptail Blenny...

The HI-96822 digital refractometer is a rugged, portable, water resistant device that utilises the measurement of the refractive index to determine the salinity of natural and artificial seawater, ocean water or brackish intermediates. The HI-96822...

The HI-97105 is designed to accurately determine pH, Alkalinity, Calcium, Nitrate, Nitrite, and Phosphate levels in aquariums and marine biology applications.  Alkalinity, Calcium, Nitrate, Nitrite, pH, Phosphate   The HI-97105 Marine Master Photometer combines accuracy...

The easy to use Checker plus is a real favourite with students and researchers due to its clear LCD display and long thin pH electrode. The checker offers automatic calibration and buffer recognition, calibrated buffer...

Testing and monitoring salinity in saltwater aquariums is an ongoing task. The HI-981520 Marine Monitor is the ideal solution for aquarists looking to continuously monitor salinity levels in aquariums, seawater, or aquaculture.  pH  Temperature  Salinity...

Hi-fin Banded Goby (Stonogobiops nematodes), also known as the Red/Blackray Prawn Goby, is a small, peaceful species reaching about 4 cm. In the wild it inhabits sandy reef slopes (20–45 m), where it lives in...

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