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Refugium Substrate
AQUARIUM REFUGIUM GENERAL INFO

A refugium is a tank that shares water with the main aquarium--much like a sump. Some refugiums hang off the back of the tank and some sit under the tank. The refugium can be used to grow macro algae and to provide a safe haven for animals that may be preyed on in the main tank.
  • Refugiums provides a controlled growing area for macroalgae, reducing the unappealing algae in the main tank. A great benefit of this is that the algae in the refugium will consume phosphates, nitrates and ammonium.
  • Organisms you might create a safe haven for in a refugium include "feeder" organisms such as feeder fish, copepods and amphipods. These organisms can be reproduced safely and then added to the main tank as needed.
  • New fish or fish that are being bullied can find safe haven in a refugium.
  • A refugium increases the amount of water in your system, which is always beneficial.
We carry a number of CPR Refugiums, including hang-on and sump style. Lighting, which is used for growing algae, and protein skimmers are options with some of the CPR refugiums.