Cultivating Ogo and Sea Lettuce for Your Tangs

These days, it seems that most marine aquarists are reef aquarists. And reef aquaria almost always house one or more tangs. This should seem reasonable enough, as representatives of this sizeable fish family (Acanthuridae) are found in abundance in pretty much every shallow water coral reef ecosystem on Earth. But their strong presence in the …

Cultivating Ogo and Sea Lettuce for Your Tangs Read More »

Phytoplankton

The first link in a food chain is always a primary producer (i.e. algae, plants, various types of bacteria). This is because all other living things—consumers—are incapable of synthesizing organic substances from inorganic ones. Primary producers rely on inorganic sources of energy (sometimes chemical, but usually from light). Using this energy, they take substances such …

Phytoplankton Read More »

Phytoplankton, Macroalgae, or BOTH?

As marine aquarists, we might think of algae as being divided into three (maybe four) distinct categories: the benthic (i.e. bottom-dwelling) microalgae, the open-water microalgae and the macroalgae. The first group consists of the film/turf-formers, the second group consists of the phytoplankton and the third group consists of the larger, plant-like seaweeds. The first group …

Phytoplankton, Macroalgae, or BOTH? Read More »

Copepods

Imagine for a second how food energy from grass, a primary producer, is transferred to a bluebird. The bluebirds don’t eat grass. Rather, they consume grasshoppers—which certainly do eat grass. In this way every secondary consumer obtains life-giving energy and biomass from primary producers through an intermediate, primary consumer. So it is across the ocean, …

Copepods Read More »

Brine Shrimp: Live Food Fast

Prepared foods have their merits. Aside from the obvious (their convenience), they are consistent in quality, easily available and relatively inexpensive. Some prepared diets may be as palatable and digestible as an animal’s favored item in the wild. They can also help considerably to vary most aquarium animals’ day-to-day diets. That being said, it’s hard …

Brine Shrimp: Live Food Fast Read More »

Sea Lettuce (Ulva lactuca): The Most Underappreciated Macroalgae?

The use of macroalgae in marine aquaria has steadily increased over the years. Ever since they have become more widespread in the aquarium hobby, they are increasingly being cultivated for specialized purposes. This specialization has generated the demand for a more diverse selection of “macros” with each species being preferred for a particular application. Some …

Sea Lettuce (Ulva lactuca): The Most Underappreciated Macroalgae? Read More »

Tig Pods: A Food for Many

The reef aquarium hobby continues to reach new heights. This is most evident by the extraordinarily beautiful systems we see on display in public places, in images on social media, in advertisements, and even in some homes. These advancements have come about not only through improved technologies and supplements, but also through a better understanding …

Tig Pods: A Food for Many Read More »

A Beginner’s Guide to Setting up a Refugium

By Nathan Peel There are many benefits to building or creating a refugium in your saltwater aquarium. It allows for additional surface area for beneficial bacteria to grow, which filters out nitrates and nutrients in an efficient and natural way. They also provide a habitat for small beneficial organisms so they can reproduce without getting …

A Beginner’s Guide to Setting up a Refugium Read More »

Increasing the Efficiency of Your Sump to Decrease Water Changes

Water changes are the most dreaded part of regular tank maintenance to most hobbyists. So much so, that many people start skipping water changes for weeks or months at a time. I don’t blame them, lugging buckets, checking salinity and parameters of new saltwater, stressing fish and other tank inhabitants, and the inevitably of spills …

Increasing the Efficiency of Your Sump to Decrease Water Changes Read More »

Captive Bred Yellow Tangs

A Classic Improved: Aquacultured Yellow Tangs

There is hardly a more iconic saltwater aquarium fish than yellow tangs (Zebrasoma flavescens). We can just start out by stating the obvious; it is a real stand-out. Nothing “pops” like the bright yellow blaze of this species. Its highly laterally compressed body and pronounced snout give it an undeniably exotic, “marine” appearance. Boldly pigmented …

A Classic Improved: Aquacultured Yellow Tangs Read More »

Kickstarting Your New Refugium

Whether it’s just been installed as part of a bone-dry, newly set up aquarium system or as an add-on to a well-established, heavily stocked reef tank, you’ll probably want your new refugium to be operating at its peak performance from the onset. Seeding the right beneficial organisms in the right amount at the right time …

Kickstarting Your New Refugium Read More »

Lighting the Refugium

There are plenty of reasons that you might consider installing a refugium in your marine aquarium system. Yours might be to add water volume to compensate for an increasingly crowded main tank. You might want to boost your copepod production. Most probably, you’re aiming to reduce dissolved nutrient concentrations. Particularly in the latter case, you’ll …

Lighting the Refugium Read More »

A Copepod Cornucopia: How to Maintain a Continuous Live Food Source in Your Reef Aquarium

Some of us aquarists are satisfied just to find a pod or two in our systems—just to know that they’re still there! Then again, some of us are always reaching for that endless bumper crop. Those who push for ever higher copepod yields might indeed be on to something really big. Let them eat pods …

A Copepod Cornucopia: How to Maintain a Continuous Live Food Source in Your Reef Aquarium Read More »