New CalcFeeder AC Mini from PacificSun

PacificSun really surprised us with their original CalcFeeder Pro which uses an optical sensor to automatically monitor dissolution rate, and now they’ve gone ahead and made an even smaller model. The CalcFeeder AC Mini is the newest model in their…

A Look at the new Neptune Systems Trident

Neptune Systems unveiled the new Trident — an new tool to test alkalinity, calcium and magnesium automatically — around MACNA and I was able to get a closer look at the Neptune Systems Trident at ReefAPalooza this past weekend.  The…

Taking Control Of Calcium, Alkalinity and Magnesium

One of the things that fascinates me and probably helps fuel my passion for the hobby is that I have been able to watch and learn through the years as we have gotten better at just about every aspect of…

IceCap Magnetic Kalkwasser Stirrer Prototype Spotted at MACNA

The Icecap Magnetic Kalkwasser Stirrer is a type of kalkreactor which could make dosing kalkwasser cool again. Dosing a solution of calcium hydroxide is one of the oldest ‘methods’ in reef keeping so any device that can streamline that process…

Salty Q&A: Calcium and Alkalinity Out of Whack

Question I’m having an issue with the calcium and alkalinity levels in my reef tank. Right now, the calcium is at 380ppm, which is at the low end of the acceptable range, and the alkalinity is at 10dKH, closer to…

The Best Beginner Small-Polyp Stony Corals

Upon entering the world of small polyp stony corals (or SPS), many people ask the magic question, “Which types are best for beginners?” In my opinion the most beginner-friendly choices are found in the genera Montipora, Pocillopora, Seriatopora, and Stylophora.…

Nyos Calcium, Magnesium and Carbonate Hardness test kit review

In addition to the easy-to-use Nitrate and Phosphate test kits, the NYOS Reefer line also includes some very well thought out tests for the mineral components of seawater, including Calcium, Magnesium and Alkalinity. With Ecotech Marine now distributing NYOS products in…

What to Consider when Converting a Fish-only Tank to a Reef System

“Caribbean Chris” and I are very frequently asked what it takes to convert a fish-only marine aquarium to a reef system containing corals and other sessile invertebrates. Can you just go ahead and add the invertebrates? Can you modify the…

Techniques for Maintaining Calcium and Alkalinity in Reef Tanks

Calcium and alkalinity are vitally important chemical parameters in reef aquariums. They are used by stony corals to build their calcium carbonate skeletons. A lack of calcium and alkalinity in the water will inhibit the growth of reef-building corals and…

The Role of Magnesium in Marine Aquarium Chemistry

One of the big differences in moving from freshwater systems to saltwater systems is a greater emphasis on water chemistry. There is a pretty steep learning curve to get a handle on all the different chemical parameters, and it can…