2-month reagent kit (based on the default testing schedule of 4-Alk/2-Ca/2-Mg per day).  The reagent kit has at least 240 alkalinity tests and 120 tests each of Calcium and Magnesium. Kits...

Calcium alone cannot form the skeletal material of corals and allow calcareous algae to grow. Some other substances are needed as well. A few other constituents are carbonate and bicarbonate. These...

The Hanna Marine Alkalinity (dKH) Checker® bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits have limited accuracy and resolution since they rely...

(Reagents SOLD SEPARATELY) The Trident is an automated testing system that regularly tests alkalinity, calcium, and magnesium in your saltwater aquarium — and then communicates this information to...

Don’t be fooled by its compact demeanor! The Nero 5 punches well above its class delivering true 3000 gallons per hour (gph) of flow. That’s the kind of flow that keeps your tank clean and your...

ATI Blue Plus T5 HO Bulb The ATI Blue Plus is arguably the most popular T5 bulb in the reef aquarium hobby. It is specifically engineered to emphasize the blue spectrum of light, which is critical...