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  • Aquariums
8 Best Practices for Using Your Hanna Marine Checker

Testing the levels with your Checker – like alkalinity, calcium, nitrite and more – may seem to be a cut-and-dry process...

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  • Aquariums
Digital Testing for Saltwater Aquariums from Hanna

Whether you are maintaining your main reef tank or trying to give your frag tank the proper calcium dosage, using the di...

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  • Aquariums
How to Test for Alkalinity (dKH or ppm) in Your Aquarium

Alkalinity is important in saltwater aquariums for a number of reasons. Proper alkalinity (142-215 ppm or 8-12 dKH) is v...

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  • Aquariums
How to Test Calcium in Your Aquarium

To keep your saltwater reef aquarium healthy, you want to maintain optimal calcium levels to ensure the health of your f...

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  • Aquariums
How to Test for Phosphate in Your Aquarium

To keep your saltwater reef aquarium healthy, you want to maintain low phosphate levels. It's important to measure phosp...

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  • Aquariums
How to Test for Nitrite in Your Aquarium

To keep your saltwater reef aquarium healthy, you want to maintain low nitrites (under 150 ppb) to ensure the health of ...

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  • Aquariums
Phosphorus in Saltwater Reef Aquariums

Phosphorus is an essential element for all life forms. While phosphorus is vital for growth in plants and animals, it ca...

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  • Aquariums
Should You Be Teaching Marine Science?

Oceans, estuaries, and bays are some of the most important natural resources worldwide and provide commercial, environme...

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  • Aquariums
Hanna Instruments’ Top 10 Trending Products for 2015

The signs are unmistakable. Times Square is in full clean-up mode. The festive decorations are coming down. The football...

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  • Aquariums
Calcium in Freshwater Snail Aquariums

Aquariums must maintain a homeostatic ecosystem for residing organisms to thrive. Multiple factors can influence the hea...

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