Would like to hear about the refugium in question in more detail. Basically, a refugium is just a container connected to the main tank that has a very slow water flow through it. It's main purpose is to provide a place for small inverts such as amphipods to breed and grow without predation. If you choose to reverse light it, it can also be used to grow macro algaes as nutrient sponges. It can be the newest thing with glowing mud in the bottom and built in pumps and lighting or it can be a rubbermaid container with a powerhead and a strip light. Beware of dealers who try to tell you that you must have the newest and most advanced equipment to have a successful tank...it's just not true. My fuge (unfinished
) is a homemade acrylic contraption that hangs on the back of the tank and is powered by a Mini Jet PH...nothing fancy, yet the pods
are breeding like rats in there.