Fish Species at

Macroalgae Forests

The seasonal" color displays in a macroalgae setup might even make reef hobbyists envious.

By Jon Olav Bjorndal |

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The marine aquarium hobby has made enormous progress in the last few decades. Keeping stony corals and various tropical animals has become possible thanks to new equipment and knowledge. Many enthusiasts who live by the ocean in the temperate zones of the world have a dream of keeping organisms from their local environment in aquariums. Until recently, both the equipment and information were hard to get. The knowledge of keeping these organisms is still lacking to a great extent, but various case studies are showing up on the Internet. I set up my 265-gallon coldwater macroalgae tank in 2007. It has been running for four years now.

Technical Setup
The basic setup of a macroalgae tank is fairly similar to that of a reef tank. There is an overflow, sump, skimmer and return pump. Internal powerheads are used for circulation. The main technical component of a coldwater system is the chiller. One of the most important questions is what kind of a chiller to use. Fairly large chillers are recommended just to keep a reef tank at what is essentially room temperature. One may think that it takes a giant device to cool a tank down to 40 degrees Fahrenheit, but that is not my experience.

Want to read the full story? Pick up the June 2011 issue of Aquarium Fish International today.

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