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Reef Chemistry - Calcium and Alkalinity

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 invertebrates, which will eventually lead to health problems. What is calcium? Calcium is one of the major ions in salt … [Read More...]

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Male Blue Throat Triggerfish (Xanthichthys auromarginatus)

X. auromarginatus: A Well-Mannered, Reef-Friendly Triggerfish

As I alluded in an earlier post about the Niger triggerfish (Odonus niger), triggers in general aren’t usually among the first species that come to mind when one is … [Read More...]

Featured Post

DIY rock for saltwater aquariums

DIY Rock for the Marine Aquarium

What is the most expensive part of starting a marine aquarium? No, it’s not the tank itself or the pumps, water, or creatures. It is the rock. Live rock can cost … [Read More...]

Recent Posts

Pros and cons of a bare bottom marine tank

The Pros and Cons of a Bare-Bottomed Marine Tank

If you’re in the process of planning and setting up a new saltwater aquarium, you’ll need to give some thought to the type of substrate you’d like to use. It may seem counterintuitive, but one of your options in this area is to dispense with any sort of … [Read More...]

Orchid Dottyback (Pseudochromis fridmani)

Orchid Dottyback: Hardy, Peaceful, and Just Right for Reef Tanks

Captive breeding of marine fishes has been a boon to our hobby in any number of ways, one of which is democratizing access to formerly really pricy species such as the orchid dottyback (Pseudochromis fridmani). While I wouldn’t characterize the current market … [Read More...]

Schooling Bannerfish (Heniochus diphreutes)

Fish or Fishes? Shoal or School? A Few Fishy Terms Defined

In my nearly two decades as an aquarium writer and editor, I’ve noticed that certain terms routinely used in hobby literature when discussing our fine, finny friends are often a source of confusion to readers. So for today’s post, I thought it might be nice to … [Read More...]

Matt Pedersen presenting at the Marine Breeding Initiative Workshop 2014

A Recap of the MBI Workshop 2014

Hosted by the Marinelife Aquarium Society of Michigan (MASM) and the Marine Breeding Initiative (MBI), and held July 19, 2014 at Cranbrook Institute of Science in Bloomfield Hills, Michigan, this was the fifth workshop they have offered dealing solely with the … [Read More...]

How to use ozone in your saltwater aquarium

Clearing the Air on Ozone: Part 2

In the first installment of this series, we examined the confirmable uses of ozone gas in the home aquarium. We saw ozone having a positive effect on the nitrogen cycle and doing a great job creating ultra-clear water conditions by breaking up suspended … [Read More...]