[CollegeReefer]

I am not to familiar with the ecosystem refugium but looking at a pic of it it looks like it is just your basic hang on back refugium. I am not sure why they want you to wait two weeks before adding your macro algae for the water that is going to the refugium is from the main display which has already been cycled. However, they may ask you to wait because of the substrate you are putting into the refugium area which will cause your tank to possibly go through a mini cycle. When i built and installed my refugium/sump i added the macro algae right away with no problems.

Now you will want to read about the different types of macro algae and find what you want to use. Different macro require different lighting. Also certian macro are considered invasive species and are actually restricted in some coastal states. Culpera is one of the restricted species. Do some research because some macro algae is better then others. I hope this helps you out a little bit.