Refugiums

  • Can I Put Fish in My Refugium?

    So you’ve got a big, healthy refugium attached to your main tank. Just sitting there, without much movement in it (well, aside from thousands of little scurrying pods). Especially if your main tank is chock full of fish, you might start to wonder: Could you keep more fish down in the fuge?  Th...
  • Do I need a Refugium?

    A little bit of aquarium maintenance is not only unavoidable, but it can also be a fun way to do some satisfying work and stay involved with your tank in particular and the hobby in general. But, in some cases, an aquarium system never seems to get in the right balance, so to speak. The result is...
  • How Big is a Refugium?

    A refugium must be large enough to function properly. That is, not just keep a bed of macroalgae alive, but also provide enough space to allow for continuous growth. Without continuous growth, nitrate and phosphate removal cease. Worse, if an overgrown mass starts to die back, you could actually ...
  • How Does a Refugium Work?

    A refugium is an auxiliary tank that is connected to the “main” tank. While the main tank is used mostly for display, the refugium serves mainly utilitarian purposes. In short, refugia naturally turn unwanted materials such as dissolved and particulate wastes into valuable live foods, namely “pod...
  • How Long Do You Leave Your Refugium Light On?

    One area of ongoing experimentation by aquarists is refugium photoperiod. To date, no one has proven that a particular refugium lighting regimen is ideal, at least for all systems. Fortunately, it doesn’t seem like any are harmful! Planted refugia seem to “work” just fine as long as they receive ...
  • What Can You Put in a Refugium?

     Theoretically, a refugium can be set up like any kind of aquarium system. Thus, if it is large enough, you could put virtually any aquarium species in it. Of course, you might have to make some special, additional accommodations; for example, if housing an eel, a refugium would need a tight-fitt...
  • What Does A Refugium Do?

    Refugia continue to become more and more popular in the marine aquarium hobby. This is in large part because of a growing reliance on natural water filtration/treatment methodologies. But, mainly, this is because they actually work. The typical refugium has multiple functions. However, their mos...
  • What is a Refugium Freshwater?

    Given the immense popularity of refugia in the marine aquarium hobby, you might be left wondering if they work in freshwater systems. While they haven’t quite caught on yet on the freshwater side of things, they are just as applicable. Freshwater refugia do indeed serve the same purpose: Remove ...
  • What is Miracle Mud?

    Various types of mud substrates are used in marine aquarium systems. They are particularly useful in refugia when growing seagrasses and/or mangroves. Muds are often rich in certain essential minerals and trace elements, which they release slowly as they break down. Due to their fine particle siz...
  • What is the Best Macroalgae for a Refugium?

    If you’ve decided to install a refugium in your reef aquarium system, you may have just made the best decision you’ll ever make as an aquarist. But now you have another important decision to make: What kind of macroalgae to keep in it? Which macro--or macros--you should cultivate depends upon th...