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 »

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 »