Understanding Old Tank Syndrome

In a few years, my reef will turn 50 years old. I believe I’ve avoided old tank syndrome by using the procedures outlined in this article.Old Tank Syndrome, or OTS, is something we have been hearing about since the hobby started, and I am not quite sure exactly what it means. Is it due to parameters, loss of diversity, lack of interest, diseases, metal accumulation, global warming, locusts, or all of the above? I think it is much simpler than “all of the above,” but some of those things are probably on the list of causes—especially locusts. It’s about bacteriaIn my opinion, OTS has to do with bacteria, or lack of it. Bacteria really run our tanks, and we are just there so the bacteria have something to make fun of. Without bacteria, our tanks would crash in less than a day.

The Green Brittle Star: Little Fishy, Beware!

Green brittle star (Ophiarachna incrassata)“Voracious predator” is not a term one commonly associates with brittle stars—that is, of course, unless the brittle star in question happens to be Ophiarachna incrassata, or the green brittle star (aka “the green death”). This bold species has a well-earned reputation for not merely scavenging deceased small fish and motile invertebrates, as one might assume, but also for actively hunting and capturing these animals while they’re still alive and kicking. Physical appearanceO. incrassata, as its common name implies, is muted green overall with lighter colored dots forming a radial pattern on the central disc. Whitish to yellowish spines line either side of each arm. Specimens can reach a rather prodigious size of around 20 inches in diameter (arm tip to arm tip, that is). Feeding This brittle star is not a finicky eater. It will accept pretty much any foods offered to fish as well as consume detritus

Don’t Neglect These 5 Critical Marine Aquarium Maintenance Tasks!

Skimmer maintenance and light bulb or tube replacement are both important aspects of marine aquarium maintenanceKeeping a marine aquarium healthy and thriving requires a significant level of maintenance. For the most part, we hobbyists are pretty good at tackling chores in a timely manner, but in some cases we’re a little more prone to procrastination—usually in situations where “out of sight means out of mind.” Here are 5 critical marine aquarium maintenance chores that are all too easily overlooked but can have a dramatic impact on the health of your livestock, the functional life of your equipment, and/or the enjoyment you derive from your system:1. Cleaning the neck of your protein skimmer No one likes to touch that grimy, slimy, stinky coating that accumulates around the neck of a protein skimmer, but don’t postpone this important task! That nasty buildup of gunk is not only unsightly, but it also greatly impedes your skimmer’s foam production, which, in turn, greatly reduces the collection of skimmate. Simply wiping the neck clean as often as needed—at the very least, once a week—is the best thing you can do to keep your skimmer functioning at peak efficiency. 2. Cleaning pumps and powerheads Pumps and powerheads are essential elements of a marine aquarium’s “circulatory system” that quietly (or sometimes not so quietly) go about the business of creating currents and moving water wherever it’s needed. But over time, these pumps can become clogged with coralline algae, sponges, vermetid snails, etc