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jeff kurtz
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Don’t Be a Penny-Wise, Pound-Foolish Marine Aquarist!

Okay, class, please put away your notes and calculators, take out your number-two pencils (clear-a-vous but for a number-two!), and complete this easy multiple-choice quiz: Which of the following reef-lighting options costs the least? A) Zany Caribbean Chris’s Homemade Reef-Suitable…

5 Circumstances that Warrant a Species (or Specimen) Tank

A diverse community of marine fishes presents quite a visual feast, especially when housed in a reef system brimming with colorful corals. However, in some stocking situations, it’s preferable to avoid the “typical” marine community (if there is such a…

Salty Q&A: How Long Before My Tank Is Cycled?

Question The fish store dealer who’s helping me through the setup of my first saltwater aquarium told me I need to give the tank time to cycle before I put any fish or corals in it. As of right now,…

Threadfin Cardinalfish: Peaceful and Most Impressive in Numbers

Walk by an LFS sales tank containing a few specimens of threadfin cardinalfish (Zoramia leptacantha), and you might not give them a second glance. Chromatically speaking, this species isn’t exactly a showstopper compared to some, especially when viewed in your…

Fish Disease Symptoms Aren’t Always What They Seem

Most marine aquarium hobbyists keep a close eye on their fish for certain tell-tale signs of ill health. And that’s a good thing, since quick intervention in the case of fish disease can often be the difference between life and…

10 Tips for Limiting Marine Livestock Losses

Distilled down to its essence, success in the marine aquarium hobby is about keeping fish and invertebrates alive and thriving. And while it may sometimes seem as though fate plays a major role in how animals fare under our care,…

Salty Q&A: Is a Sump the Same as a Refugium?

Question What exactly is the difference between a “sump” and a “refugium” (assuming there is a difference)? These are terms I didn’t hear in my 30-plus years as a freshwater aquarist, but I’ve heard them numerous times since starting my…

5 Marine Aquarium Setup Missteps

Marine aquarium hobbyists can make any number of mistakes when setting up a new system, but some of these errors aren’t as easy as others to rectify after the fact. What follows is a list of five setup errors that…

Marine Aquarium Acronyms: PE Defined

The marine aquarium hobby is second only to the US military when it comes to the number of acronyms its members throw around. (Quite fittingly, this past Monday was the 27th anniversary of my DOE. Shortly after that date, I…

The Signal Goby: A Master Mimic with a Sketchy Captive Survival Record

The signal goby (Signigobius biocellatus), aka the twin-spot, two-spot, or crab-eye goby, is an appealing little sand sifter with fascinating behavior that, unfortunately, often adapts very poorly to aquarium life. Nonetheless, specimens still appear in the aquarium trade, so it’s…